131237960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:463

約数の個数: 128

約数和(自身を含む): 362880000

約数和(自身を除く): 231642040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 79, 85, 119, 136, 140, 158, 170, 238, 280, 316, 340, 349, 395, 476, 553, 595, 632, 680, 698, 790, 952, 1106, 1190, 1343, 1396, 1580, 1745, 2212, 2380, 2443, 2686, 2765, 2792, 3160, 3490, 4424, 4760, 4886, 5372, 5530, 5933, 6715, 6980, 9401, 9772, 10744, 11060, 11866, 12215, 13430, 13960, 18802, 19544, 22120, 23732, 24430, 26860, 27571, 29665, 37604, 41531, 47005, 47464, 48860, 53720, 55142, 59330, 75208, 83062, 94010, 97720, 110284, 118660, 137855, 166124, 188020, 192997, 207655, 220568, 237320, 275710, 332248, 376040, 385994, 415310, 468707, 551420, 771988, 830620, 937414, 964985, 1102840, 1543976, 1661240, 1874828, 1929970, 2343535, 3280949, 3749656, 3859940, 4687070, 6561898, 7719880, 9374140, 13123796, 16404745, 18748280, 26247592, 32809490, 65618980, 131237960]

約数ペア:

[(1, 131237960), (2, 65618980), (4, 32809490), (5, 26247592), (7, 18748280), (8, 16404745), (10, 13123796), (14, 9374140), (17, 7719880), (20, 6561898), (28, 4687070), (34, 3859940), (35, 3749656), (40, 3280949), (56, 2343535), (68, 1929970), (70, 1874828), (79, 1661240), (85, 1543976), (119, 1102840), (136, 964985), (140, 937414), (158, 830620), (170, 771988), (238, 551420), (280, 468707), (316, 415310), (340, 385994), (349, 376040), (395, 332248), (476, 275710), (553, 237320), (595, 220568), (632, 207655), (680, 192997), (698, 188020), (790, 166124), (952, 137855), (1106, 118660), (1190, 110284), (1343, 97720), (1396, 94010), (1580, 83062), (1745, 75208), (2212, 59330), (2380, 55142), (2443, 53720), (2686, 48860), (2765, 47464), (2792, 47005), (3160, 41531), (3490, 37604), (4424, 29665), (4760, 27571), (4886, 26860), (5372, 24430), (5530, 23732), (5933, 22120), (6715, 19544), (6980, 18802), (9401, 13960), (9772, 13430), (10744, 12215), (11060, 11866)]