66878760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{997}}^1$

素因数の和:1067

約数の個数: 128

約数和(自身を含む): 221316480

約数和(自身を除く): 154437720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 43, 52, 60, 65, 78, 86, 104, 120, 129, 130, 156, 172, 195, 215, 258, 260, 312, 344, 390, 430, 516, 520, 559, 645, 780, 860, 997, 1032, 1118, 1290, 1560, 1677, 1720, 1994, 2236, 2580, 2795, 2991, 3354, 3988, 4472, 4985, 5160, 5590, 5982, 6708, 7976, 8385, 9970, 11180, 11964, 12961, 13416, 14955, 16770, 19940, 22360, 23928, 25922, 29910, 33540, 38883, 39880, 42871, 51844, 59820, 64805, 67080, 77766, 85742, 103688, 119640, 128613, 129610, 155532, 171484, 194415, 214355, 257226, 259220, 311064, 342968, 388830, 428710, 514452, 518440, 557323, 643065, 777660, 857420, 1028904, 1114646, 1286130, 1555320, 1671969, 1714840, 2229292, 2572260, 2786615, 3343938, 4458584, 5144520, 5573230, 6687876, 8359845, 11146460, 13375752, 16719690, 22292920, 33439380, 66878760]

約数ペア:

[(1, 66878760), (2, 33439380), (3, 22292920), (4, 16719690), (5, 13375752), (6, 11146460), (8, 8359845), (10, 6687876), (12, 5573230), (13, 5144520), (15, 4458584), (20, 3343938), (24, 2786615), (26, 2572260), (30, 2229292), (39, 1714840), (40, 1671969), (43, 1555320), (52, 1286130), (60, 1114646), (65, 1028904), (78, 857420), (86, 777660), (104, 643065), (120, 557323), (129, 518440), (130, 514452), (156, 428710), (172, 388830), (195, 342968), (215, 311064), (258, 259220), (260, 257226), (312, 214355), (344, 194415), (390, 171484), (430, 155532), (516, 129610), (520, 128613), (559, 119640), (645, 103688), (780, 85742), (860, 77766), (997, 67080), (1032, 64805), (1118, 59820), (1290, 51844), (1560, 42871), (1677, 39880), (1720, 38883), (1994, 33540), (2236, 29910), (2580, 25922), (2795, 23928), (2991, 22360), (3354, 19940), (3988, 16770), (4472, 14955), (4985, 13416), (5160, 12961), (5590, 11964), (5982, 11180), (6708, 9970), (7976, 8385)]