725333960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:391

約数の個数: 128

約数和(自身を含む): 1809561600

約数和(自身を除く): 1084227640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 109, 130, 134, 191, 218, 260, 268, 335, 382, 436, 520, 536, 545, 670, 764, 871, 872, 955, 1090, 1340, 1417, 1528, 1742, 1910, 2180, 2483, 2680, 2834, 3484, 3820, 4355, 4360, 4966, 5668, 6968, 7085, 7303, 7640, 8710, 9932, 11336, 12415, 12797, 14170, 14606, 17420, 19864, 20819, 24830, 25594, 28340, 29212, 34840, 36515, 41638, 49660, 51188, 56680, 58424, 63985, 73030, 83276, 94939, 99320, 102376, 104095, 127970, 146060, 166361, 166552, 189878, 208190, 255940, 270647, 292120, 332722, 379756, 416380, 474695, 511880, 541294, 665444, 759512, 831805, 832760, 949390, 1082588, 1330888, 1353235, 1394873, 1663610, 1898780, 2165176, 2706470, 2789746, 3327220, 3797560, 5412940, 5579492, 6654440, 6974365, 10825880, 11158984, 13948730, 18133349, 27897460, 36266698, 55794920, 72533396, 90666745, 145066792, 181333490, 362666980, 725333960]

約数ペア:

[(1, 725333960), (2, 362666980), (4, 181333490), (5, 145066792), (8, 90666745), (10, 72533396), (13, 55794920), (20, 36266698), (26, 27897460), (40, 18133349), (52, 13948730), (65, 11158984), (67, 10825880), (104, 6974365), (109, 6654440), (130, 5579492), (134, 5412940), (191, 3797560), (218, 3327220), (260, 2789746), (268, 2706470), (335, 2165176), (382, 1898780), (436, 1663610), (520, 1394873), (536, 1353235), (545, 1330888), (670, 1082588), (764, 949390), (871, 832760), (872, 831805), (955, 759512), (1090, 665444), (1340, 541294), (1417, 511880), (1528, 474695), (1742, 416380), (1910, 379756), (2180, 332722), (2483, 292120), (2680, 270647), (2834, 255940), (3484, 208190), (3820, 189878), (4355, 166552), (4360, 166361), (4966, 146060), (5668, 127970), (6968, 104095), (7085, 102376), (7303, 99320), (7640, 94939), (8710, 83276), (9932, 73030), (11336, 63985), (12415, 58424), (12797, 56680), (14170, 51188), (14606, 49660), (17420, 41638), (19864, 36515), (20819, 34840), (24830, 29212), (25594, 28340)]