388313440

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{991}}^1$

素因数の和:1116

約数の個数: 96

約数和(自身を含む): 959938560

約数和(自身を除く): 571625120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 79, 80, 124, 155, 158, 160, 248, 310, 316, 395, 496, 620, 632, 790, 991, 992, 1240, 1264, 1580, 1982, 2449, 2480, 2528, 3160, 3964, 4898, 4955, 4960, 6320, 7928, 9796, 9910, 12245, 12640, 15856, 19592, 19820, 24490, 30721, 31712, 39184, 39640, 48980, 61442, 78289, 78368, 79280, 97960, 122884, 153605, 156578, 158560, 195920, 245768, 307210, 313156, 391445, 391840, 491536, 614420, 626312, 782890, 983072, 1228840, 1252624, 1565780, 2426959, 2457680, 2505248, 3131560, 4853918, 4915360, 6263120, 9707836, 12134795, 12526240, 19415672, 24269590, 38831344, 48539180, 77662688, 97078360, 194156720, 388313440]

約数ペア:

[(1, 388313440), (2, 194156720), (4, 97078360), (5, 77662688), (8, 48539180), (10, 38831344), (16, 24269590), (20, 19415672), (31, 12526240), (32, 12134795), (40, 9707836), (62, 6263120), (79, 4915360), (80, 4853918), (124, 3131560), (155, 2505248), (158, 2457680), (160, 2426959), (248, 1565780), (310, 1252624), (316, 1228840), (395, 983072), (496, 782890), (620, 626312), (632, 614420), (790, 491536), (991, 391840), (992, 391445), (1240, 313156), (1264, 307210), (1580, 245768), (1982, 195920), (2449, 158560), (2480, 156578), (2528, 153605), (3160, 122884), (3964, 97960), (4898, 79280), (4955, 78368), (4960, 78289), (6320, 61442), (7928, 48980), (9796, 39640), (9910, 39184), (12245, 31712), (12640, 30721), (15856, 24490), (19592, 19820)]