71781710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:210

約数の個数: 128

約数和(自身を含む): 177666048

約数和(自身を除く): 105884338

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 71, 77, 91, 101, 110, 130, 142, 143, 154, 182, 202, 286, 355, 385, 455, 497, 505, 707, 710, 715, 770, 781, 910, 923, 994, 1001, 1010, 1111, 1313, 1414, 1430, 1562, 1846, 2002, 2222, 2485, 2626, 3535, 3905, 4615, 4970, 5005, 5467, 5555, 6461, 6565, 7070, 7171, 7777, 7810, 9191, 9230, 10010, 10153, 10934, 11110, 12922, 13130, 14342, 14443, 15554, 18382, 20306, 27335, 28886, 32305, 35855, 38885, 45955, 50197, 50765, 54670, 64610, 71071, 71710, 72215, 77770, 78881, 91910, 93223, 100394, 101101, 101530, 142142, 144430, 157762, 186446, 202202, 250985, 355355, 394405, 466115, 501970, 505505, 552167, 652561, 710710, 788810, 932230, 1011010, 1025453, 1104334, 1305122, 2050906, 2760835, 3262805, 5127265, 5521670, 6525610, 7178171, 10254530, 14356342, 35890855, 71781710]

約数ペア:

[(1, 71781710), (2, 35890855), (5, 14356342), (7, 10254530), (10, 7178171), (11, 6525610), (13, 5521670), (14, 5127265), (22, 3262805), (26, 2760835), (35, 2050906), (55, 1305122), (65, 1104334), (70, 1025453), (71, 1011010), (77, 932230), (91, 788810), (101, 710710), (110, 652561), (130, 552167), (142, 505505), (143, 501970), (154, 466115), (182, 394405), (202, 355355), (286, 250985), (355, 202202), (385, 186446), (455, 157762), (497, 144430), (505, 142142), (707, 101530), (710, 101101), (715, 100394), (770, 93223), (781, 91910), (910, 78881), (923, 77770), (994, 72215), (1001, 71710), (1010, 71071), (1111, 64610), (1313, 54670), (1414, 50765), (1430, 50197), (1562, 45955), (1846, 38885), (2002, 35855), (2222, 32305), (2485, 28886), (2626, 27335), (3535, 20306), (3905, 18382), (4615, 15554), (4970, 14443), (5005, 14342), (5467, 13130), (5555, 12922), (6461, 11110), (6565, 10934), (7070, 10153), (7171, 10010), (7777, 9230), (7810, 9191)]