820066560

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^2$

素因数の和:221

約数の個数: 216

約数和(自身を含む): 2736539904

約数和(自身を除く): 1916473344

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 83, 93, 96, 120, 124, 128, 155, 160, 166, 186, 192, 240, 248, 249, 256, 310, 320, 332, 372, 384, 415, 465, 480, 496, 498, 620, 640, 664, 744, 768, 830, 930, 960, 992, 996, 1240, 1245, 1280, 1328, 1488, 1660, 1860, 1920, 1984, 1992, 2480, 2490, 2573, 2656, 2976, 3320, 3720, 3840, 3968, 3984, 4960, 4980, 5146, 5312, 5952, 6640, 6889, 7440, 7719, 7936, 7968, 9920, 9960, 10292, 10624, 11904, 12865, 13280, 13778, 14880, 15438, 15936, 19840, 19920, 20584, 20667, 21248, 23808, 25730, 26560, 27556, 29760, 30876, 31872, 34445, 38595, 39680, 39840, 41168, 41334, 51460, 53120, 55112, 59520, 61752, 63744, 68890, 77190, 79680, 82336, 82668, 102920, 103335, 106240, 110224, 119040, 123504, 137780, 154380, 159360, 164672, 165336, 205840, 206670, 213559, 220448, 247008, 275560, 308760, 318720, 329344, 330672, 411680, 413340, 427118, 440896, 494016, 551120, 617520, 640677, 658688, 661344, 823360, 826680, 854236, 881792, 988032, 1067795, 1102240, 1235040, 1281354, 1322688, 1646720, 1653360, 1708472, 1763584, 1976064, 2135590, 2204480, 2470080, 2562708, 2645376, 3203385, 3293440, 3306720, 3416944, 4271180, 4408960, 4940160, 5125416, 5290752, 6406770, 6613440, 6833888, 8542360, 8817920, 9880320, 10250832, 12813540, 13226880, 13667776, 17084720, 20501664, 25627080, 26453760, 27335552, 34169440, 41003328, 51254160, 54671104, 68338880, 82006656, 102508320, 136677760, 164013312, 205016640, 273355520, 410033280, 820066560]

約数ペア:

[(1, 820066560), (2, 410033280), (3, 273355520), (4, 205016640), (5, 164013312), (6, 136677760), (8, 102508320), (10, 82006656), (12, 68338880), (15, 54671104), (16, 51254160), (20, 41003328), (24, 34169440), (30, 27335552), (31, 26453760), (32, 25627080), (40, 20501664), (48, 17084720), (60, 13667776), (62, 13226880), (64, 12813540), (80, 10250832), (83, 9880320), (93, 8817920), (96, 8542360), (120, 6833888), (124, 6613440), (128, 6406770), (155, 5290752), (160, 5125416), (166, 4940160), (186, 4408960), (192, 4271180), (240, 3416944), (248, 3306720), (249, 3293440), (256, 3203385), (310, 2645376), (320, 2562708), (332, 2470080), (372, 2204480), (384, 2135590), (415, 1976064), (465, 1763584), (480, 1708472), (496, 1653360), (498, 1646720), (620, 1322688), (640, 1281354), (664, 1235040), (744, 1102240), (768, 1067795), (830, 988032), (930, 881792), (960, 854236), (992, 826680), (996, 823360), (1240, 661344), (1245, 658688), (1280, 640677), (1328, 617520), (1488, 551120), (1660, 494016), (1860, 440896), (1920, 427118), (1984, 413340), (1992, 411680), (2480, 330672), (2490, 329344), (2573, 318720), (2656, 308760), (2976, 275560), (3320, 247008), (3720, 220448), (3840, 213559), (3968, 206670), (3984, 205840), (4960, 165336), (4980, 164672), (5146, 159360), (5312, 154380), (5952, 137780), (6640, 123504), (6889, 119040), (7440, 110224), (7719, 106240), (7936, 103335), (7968, 102920), (9920, 82668), (9960, 82336), (10292, 79680), (10624, 77190), (11904, 68890), (12865, 63744), (13280, 61752), (13778, 59520), (14880, 55112), (15438, 53120), (15936, 51460), (19840, 41334), (19920, 41168), (20584, 39840), (20667, 39680), (21248, 38595), (23808, 34445), (25730, 31872), (26560, 30876), (27556, 29760)]