661954920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{8221}}^1$

素因数の和:8307

約数の個数: 128

約数和(自身を含む): 2202180480

約数和(自身を除く): 1540225560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 61, 66, 88, 110, 120, 122, 132, 165, 183, 220, 244, 264, 305, 330, 366, 440, 488, 610, 660, 671, 732, 915, 1220, 1320, 1342, 1464, 1830, 2013, 2440, 2684, 3355, 3660, 4026, 5368, 6710, 7320, 8052, 8221, 10065, 13420, 16104, 16442, 20130, 24663, 26840, 32884, 40260, 41105, 49326, 65768, 80520, 82210, 90431, 98652, 123315, 164420, 180862, 197304, 246630, 271293, 328840, 361724, 452155, 493260, 501481, 542586, 723448, 904310, 986520, 1002962, 1085172, 1356465, 1504443, 1808620, 2005924, 2170344, 2507405, 2712930, 3008886, 3617240, 4011848, 5014810, 5425860, 5516291, 6017772, 7522215, 10029620, 10851720, 11032582, 12035544, 15044430, 16548873, 20059240, 22065164, 27581455, 30088860, 33097746, 44130328, 55162910, 60177720, 66195492, 82744365, 110325820, 132390984, 165488730, 220651640, 330977460, 661954920]

約数ペア:

[(1, 661954920), (2, 330977460), (3, 220651640), (4, 165488730), (5, 132390984), (6, 110325820), (8, 82744365), (10, 66195492), (11, 60177720), (12, 55162910), (15, 44130328), (20, 33097746), (22, 30088860), (24, 27581455), (30, 22065164), (33, 20059240), (40, 16548873), (44, 15044430), (55, 12035544), (60, 11032582), (61, 10851720), (66, 10029620), (88, 7522215), (110, 6017772), (120, 5516291), (122, 5425860), (132, 5014810), (165, 4011848), (183, 3617240), (220, 3008886), (244, 2712930), (264, 2507405), (305, 2170344), (330, 2005924), (366, 1808620), (440, 1504443), (488, 1356465), (610, 1085172), (660, 1002962), (671, 986520), (732, 904310), (915, 723448), (1220, 542586), (1320, 501481), (1342, 493260), (1464, 452155), (1830, 361724), (2013, 328840), (2440, 271293), (2684, 246630), (3355, 197304), (3660, 180862), (4026, 164420), (5368, 123315), (6710, 98652), (7320, 90431), (8052, 82210), (8221, 80520), (10065, 65768), (13420, 49326), (16104, 41105), (16442, 40260), (20130, 32884), (24663, 26840)]