81220560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1171}}^1$

素因数の和:1221

約数の個数: 120

約数和(自身を含む): 267694176

約数和(自身を除く): 186473616

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 289, 340, 408, 510, 578, 680, 816, 867, 1020, 1156, 1171, 1360, 1445, 1734, 2040, 2312, 2342, 2890, 3468, 3513, 4080, 4335, 4624, 4684, 5780, 5855, 6936, 7026, 8670, 9368, 11560, 11710, 13872, 14052, 17340, 17565, 18736, 19907, 23120, 23420, 28104, 34680, 35130, 39814, 46840, 56208, 59721, 69360, 70260, 79628, 93680, 99535, 119442, 140520, 159256, 199070, 238884, 281040, 298605, 318512, 338419, 398140, 477768, 597210, 676838, 796280, 955536, 1015257, 1194420, 1353676, 1592560, 1692095, 2030514, 2388840, 2707352, 3384190, 4061028, 4777680, 5076285, 5414704, 6768380, 8122056, 10152570, 13536760, 16244112, 20305140, 27073520, 40610280, 81220560]

約数ペア:

[(1, 81220560), (2, 40610280), (3, 27073520), (4, 20305140), (5, 16244112), (6, 13536760), (8, 10152570), (10, 8122056), (12, 6768380), (15, 5414704), (16, 5076285), (17, 4777680), (20, 4061028), (24, 3384190), (30, 2707352), (34, 2388840), (40, 2030514), (48, 1692095), (51, 1592560), (60, 1353676), (68, 1194420), (80, 1015257), (85, 955536), (102, 796280), (120, 676838), (136, 597210), (170, 477768), (204, 398140), (240, 338419), (255, 318512), (272, 298605), (289, 281040), (340, 238884), (408, 199070), (510, 159256), (578, 140520), (680, 119442), (816, 99535), (867, 93680), (1020, 79628), (1156, 70260), (1171, 69360), (1360, 59721), (1445, 56208), (1734, 46840), (2040, 39814), (2312, 35130), (2342, 34680), (2890, 28104), (3468, 23420), (3513, 23120), (4080, 19907), (4335, 18736), (4624, 17565), (4684, 17340), (5780, 14052), (5855, 13872), (6936, 11710), (7026, 11560), (8670, 9368)]