257504520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23581}}^1$

素因数の和:23615

約数の個数: 128

約数和(自身を含む): 950826240

約数和(自身を除く): 693321720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 2184, 2730, 3640, 5460, 10920, 23581, 47162, 70743, 94324, 117905, 141486, 165067, 188648, 235810, 282972, 306553, 330134, 353715, 471620, 495201, 565944, 613106, 660268, 707430, 825335, 919659, 943240, 990402, 1226212, 1320536, 1414860, 1532765, 1650670, 1839318, 1980804, 2145871, 2452424, 2476005, 2829720, 3065530, 3301340, 3678636, 3961608, 4291742, 4598295, 4952010, 6131060, 6437613, 6602680, 7357272, 8583484, 9196590, 9904020, 10729355, 12262120, 12875226, 17166968, 18393180, 19808040, 21458710, 25750452, 32188065, 36786360, 42917420, 51500904, 64376130, 85834840, 128752260, 257504520]

約数ペア:

[(1, 257504520), (2, 128752260), (3, 85834840), (4, 64376130), (5, 51500904), (6, 42917420), (7, 36786360), (8, 32188065), (10, 25750452), (12, 21458710), (13, 19808040), (14, 18393180), (15, 17166968), (20, 12875226), (21, 12262120), (24, 10729355), (26, 9904020), (28, 9196590), (30, 8583484), (35, 7357272), (39, 6602680), (40, 6437613), (42, 6131060), (52, 4952010), (56, 4598295), (60, 4291742), (65, 3961608), (70, 3678636), (78, 3301340), (84, 3065530), (91, 2829720), (104, 2476005), (105, 2452424), (120, 2145871), (130, 1980804), (140, 1839318), (156, 1650670), (168, 1532765), (182, 1414860), (195, 1320536), (210, 1226212), (260, 990402), (273, 943240), (280, 919659), (312, 825335), (364, 707430), (390, 660268), (420, 613106), (455, 565944), (520, 495201), (546, 471620), (728, 353715), (780, 330134), (840, 306553), (910, 282972), (1092, 235810), (1365, 188648), (1560, 165067), (1820, 141486), (2184, 117905), (2730, 94324), (3640, 70743), (5460, 47162), (10920, 23581)]