81154920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8783}}^1$

素因数の和:8815

約数の個数: 128

約数和(自身を含む): 303575040

約数和(自身を除く): 222420120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2310, 3080, 4620, 8783, 9240, 17566, 26349, 35132, 43915, 52698, 61481, 70264, 87830, 96613, 105396, 122962, 131745, 175660, 184443, 193226, 210792, 245924, 263490, 289839, 307405, 351320, 368886, 386452, 483065, 491848, 526980, 579678, 614810, 676291, 737772, 772904, 922215, 966130, 1053960, 1159356, 1229620, 1352582, 1449195, 1475544, 1844430, 1932260, 2028873, 2318712, 2459240, 2705164, 2898390, 3381455, 3688860, 3864520, 4057746, 5410328, 5796780, 6762910, 7377720, 8115492, 10144365, 11593560, 13525820, 16230984, 20288730, 27051640, 40577460, 81154920]

約数ペア:

[(1, 81154920), (2, 40577460), (3, 27051640), (4, 20288730), (5, 16230984), (6, 13525820), (7, 11593560), (8, 10144365), (10, 8115492), (11, 7377720), (12, 6762910), (14, 5796780), (15, 5410328), (20, 4057746), (21, 3864520), (22, 3688860), (24, 3381455), (28, 2898390), (30, 2705164), (33, 2459240), (35, 2318712), (40, 2028873), (42, 1932260), (44, 1844430), (55, 1475544), (56, 1449195), (60, 1352582), (66, 1229620), (70, 1159356), (77, 1053960), (84, 966130), (88, 922215), (105, 772904), (110, 737772), (120, 676291), (132, 614810), (140, 579678), (154, 526980), (165, 491848), (168, 483065), (210, 386452), (220, 368886), (231, 351320), (264, 307405), (280, 289839), (308, 263490), (330, 245924), (385, 210792), (420, 193226), (440, 184443), (462, 175660), (616, 131745), (660, 122962), (770, 105396), (840, 96613), (924, 87830), (1155, 70264), (1320, 61481), (1540, 52698), (1848, 43915), (2310, 35132), (3080, 26349), (4620, 17566), (8783, 9240)]