1640390040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{74699}}^1$

素因数の和:74777

約数の個数: 96

約数和(自身を含む): 5418738000

約数和(自身を除く): 3778347960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 61, 72, 90, 120, 122, 180, 183, 244, 305, 360, 366, 488, 549, 610, 732, 915, 1098, 1220, 1464, 1830, 2196, 2440, 2745, 3660, 4392, 5490, 7320, 10980, 21960, 74699, 149398, 224097, 298796, 373495, 448194, 597592, 672291, 746990, 896388, 1120485, 1344582, 1493980, 1792776, 2240970, 2689164, 2987960, 3361455, 4481940, 4556639, 5378328, 6722910, 8963880, 9113278, 13445820, 13669917, 18226556, 22783195, 26891640, 27339834, 36453112, 41009751, 45566390, 54679668, 68349585, 82019502, 91132780, 109359336, 136699170, 164039004, 182265560, 205048755, 273398340, 328078008, 410097510, 546796680, 820195020, 1640390040]

約数ペア:

[(1, 1640390040), (2, 820195020), (3, 546796680), (4, 410097510), (5, 328078008), (6, 273398340), (8, 205048755), (9, 182265560), (10, 164039004), (12, 136699170), (15, 109359336), (18, 91132780), (20, 82019502), (24, 68349585), (30, 54679668), (36, 45566390), (40, 41009751), (45, 36453112), (60, 27339834), (61, 26891640), (72, 22783195), (90, 18226556), (120, 13669917), (122, 13445820), (180, 9113278), (183, 8963880), (244, 6722910), (305, 5378328), (360, 4556639), (366, 4481940), (488, 3361455), (549, 2987960), (610, 2689164), (732, 2240970), (915, 1792776), (1098, 1493980), (1220, 1344582), (1464, 1120485), (1830, 896388), (2196, 746990), (2440, 672291), (2745, 597592), (3660, 448194), (4392, 373495), (5490, 298796), (7320, 224097), (10980, 149398), (21960, 74699)]