72396160

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 128

約数和(自身を含む): 185068800

約数和(自身を除く): 112672640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 89, 124, 128, 155, 160, 164, 178, 205, 248, 310, 320, 328, 356, 410, 445, 496, 620, 640, 656, 712, 820, 890, 992, 1240, 1271, 1312, 1424, 1640, 1780, 1984, 2480, 2542, 2624, 2759, 2848, 3280, 3560, 3649, 3968, 4960, 5084, 5248, 5518, 5696, 6355, 6560, 7120, 7298, 9920, 10168, 11036, 11392, 12710, 13120, 13795, 14240, 14596, 18245, 19840, 20336, 22072, 25420, 26240, 27590, 28480, 29192, 36490, 40672, 44144, 50840, 55180, 56960, 58384, 72980, 81344, 88288, 101680, 110360, 113119, 116768, 145960, 162688, 176576, 203360, 220720, 226238, 233536, 291920, 353152, 406720, 441440, 452476, 467072, 565595, 583840, 813440, 882880, 904952, 1131190, 1167680, 1765760, 1809904, 2262380, 2335360, 3619808, 4524760, 7239616, 9049520, 14479232, 18099040, 36198080, 72396160]

約数ペア:

[(1, 72396160), (2, 36198080), (4, 18099040), (5, 14479232), (8, 9049520), (10, 7239616), (16, 4524760), (20, 3619808), (31, 2335360), (32, 2262380), (40, 1809904), (41, 1765760), (62, 1167680), (64, 1131190), (80, 904952), (82, 882880), (89, 813440), (124, 583840), (128, 565595), (155, 467072), (160, 452476), (164, 441440), (178, 406720), (205, 353152), (248, 291920), (310, 233536), (320, 226238), (328, 220720), (356, 203360), (410, 176576), (445, 162688), (496, 145960), (620, 116768), (640, 113119), (656, 110360), (712, 101680), (820, 88288), (890, 81344), (992, 72980), (1240, 58384), (1271, 56960), (1312, 55180), (1424, 50840), (1640, 44144), (1780, 40672), (1984, 36490), (2480, 29192), (2542, 28480), (2624, 27590), (2759, 26240), (2848, 25420), (3280, 22072), (3560, 20336), (3649, 19840), (3968, 18245), (4960, 14596), (5084, 14240), (5248, 13795), (5518, 13120), (5696, 12710), (6355, 11392), (6560, 11036), (7120, 10168), (7298, 9920)]