257585510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:478

約数の個数: 128

約数和(自身を含む): 616218624

約数和(自身を除く): 358633114

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 26, 31, 35, 46, 62, 65, 70, 91, 115, 130, 155, 161, 182, 217, 230, 299, 310, 322, 397, 403, 434, 455, 598, 713, 794, 805, 806, 910, 1085, 1426, 1495, 1610, 1985, 2015, 2093, 2170, 2779, 2821, 2990, 3565, 3970, 4030, 4186, 4991, 5161, 5558, 5642, 7130, 9131, 9269, 9982, 10322, 10465, 12307, 13895, 14105, 18262, 18538, 20930, 24614, 24955, 25805, 27790, 28210, 36127, 45655, 46345, 49910, 51610, 61535, 63917, 64883, 72254, 86149, 91310, 92690, 118703, 123070, 127834, 129766, 159991, 172298, 180635, 237406, 283061, 319585, 319982, 324415, 361270, 430745, 566122, 593515, 639170, 648830, 799955, 830921, 861490, 1119937, 1187030, 1415305, 1599910, 1661842, 1981427, 2239874, 2830610, 3679793, 3962854, 4154605, 5599685, 7359586, 8309210, 9907135, 11199370, 18398965, 19814270, 25758551, 36797930, 51517102, 128792755, 257585510]

約数ペア:

[(1, 257585510), (2, 128792755), (5, 51517102), (7, 36797930), (10, 25758551), (13, 19814270), (14, 18398965), (23, 11199370), (26, 9907135), (31, 8309210), (35, 7359586), (46, 5599685), (62, 4154605), (65, 3962854), (70, 3679793), (91, 2830610), (115, 2239874), (130, 1981427), (155, 1661842), (161, 1599910), (182, 1415305), (217, 1187030), (230, 1119937), (299, 861490), (310, 830921), (322, 799955), (397, 648830), (403, 639170), (434, 593515), (455, 566122), (598, 430745), (713, 361270), (794, 324415), (805, 319982), (806, 319585), (910, 283061), (1085, 237406), (1426, 180635), (1495, 172298), (1610, 159991), (1985, 129766), (2015, 127834), (2093, 123070), (2170, 118703), (2779, 92690), (2821, 91310), (2990, 86149), (3565, 72254), (3970, 64883), (4030, 63917), (4186, 61535), (4991, 51610), (5161, 49910), (5558, 46345), (5642, 45655), (7130, 36127), (9131, 28210), (9269, 27790), (9982, 25805), (10322, 24955), (10465, 24614), (12307, 20930), (13895, 18538), (14105, 18262)]