12878320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 160

約数和(自身を含む): 38747520

約数和(自身を除く): 25869200

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 29, 35, 40, 52, 56, 58, 61, 65, 70, 80, 91, 104, 112, 116, 122, 130, 140, 145, 182, 203, 208, 232, 244, 260, 280, 290, 305, 364, 377, 406, 427, 455, 464, 488, 520, 560, 580, 610, 728, 754, 793, 812, 854, 910, 976, 1015, 1040, 1160, 1220, 1456, 1508, 1586, 1624, 1708, 1769, 1820, 1885, 2030, 2135, 2320, 2440, 2639, 3016, 3172, 3248, 3416, 3538, 3640, 3770, 3965, 4060, 4270, 4880, 5278, 5551, 6032, 6344, 6832, 7076, 7280, 7540, 7930, 8120, 8540, 8845, 10556, 11102, 12383, 12688, 13195, 14152, 15080, 15860, 16240, 17080, 17690, 21112, 22204, 22997, 24766, 26390, 27755, 28304, 30160, 31720, 34160, 35380, 42224, 44408, 45994, 49532, 52780, 55510, 61915, 63440, 70760, 88816, 91988, 99064, 105560, 111020, 114985, 123830, 141520, 160979, 183976, 198128, 211120, 222040, 229970, 247660, 321958, 367952, 444080, 459940, 495320, 643916, 804895, 919880, 990640, 1287832, 1609790, 1839760, 2575664, 3219580, 6439160, 12878320]

約数ペア:

[(1, 12878320), (2, 6439160), (4, 3219580), (5, 2575664), (7, 1839760), (8, 1609790), (10, 1287832), (13, 990640), (14, 919880), (16, 804895), (20, 643916), (26, 495320), (28, 459940), (29, 444080), (35, 367952), (40, 321958), (52, 247660), (56, 229970), (58, 222040), (61, 211120), (65, 198128), (70, 183976), (80, 160979), (91, 141520), (104, 123830), (112, 114985), (116, 111020), (122, 105560), (130, 99064), (140, 91988), (145, 88816), (182, 70760), (203, 63440), (208, 61915), (232, 55510), (244, 52780), (260, 49532), (280, 45994), (290, 44408), (305, 42224), (364, 35380), (377, 34160), (406, 31720), (427, 30160), (455, 28304), (464, 27755), (488, 26390), (520, 24766), (560, 22997), (580, 22204), (610, 21112), (728, 17690), (754, 17080), (793, 16240), (812, 15860), (854, 15080), (910, 14152), (976, 13195), (1015, 12688), (1040, 12383), (1160, 11102), (1220, 10556), (1456, 8845), (1508, 8540), (1586, 8120), (1624, 7930), (1708, 7540), (1769, 7280), (1820, 7076), (1885, 6832), (2030, 6344), (2135, 6032), (2320, 5551), (2440, 5278), (2639, 4880), (3016, 4270), (3172, 4060), (3248, 3965), (3416, 3770), (3538, 3640)]