261101750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{499}}^1$

素因数の和:559

約数の個数: 128

約数和(自身を含む): 628992000

約数和(自身を除く): 367890250

約数列:

[1, 2, 5, 7, 10, 13, 14, 23, 25, 26, 35, 46, 50, 65, 70, 91, 115, 125, 130, 161, 175, 182, 230, 250, 299, 322, 325, 350, 455, 499, 575, 598, 650, 805, 875, 910, 998, 1150, 1495, 1610, 1625, 1750, 2093, 2275, 2495, 2875, 2990, 3250, 3493, 4025, 4186, 4550, 4990, 5750, 6487, 6986, 7475, 8050, 10465, 11375, 11477, 12475, 12974, 14950, 17465, 20125, 20930, 22750, 22954, 24950, 32435, 34930, 37375, 40250, 45409, 52325, 57385, 62375, 64870, 74750, 80339, 87325, 90818, 104650, 114770, 124750, 149201, 160678, 162175, 174650, 227045, 261625, 286925, 298402, 324350, 401695, 436625, 454090, 523250, 573850, 746005, 803390, 810875, 873250, 1044407, 1135225, 1434625, 1492010, 1621750, 2008475, 2088814, 2270450, 2869250, 3730025, 4016950, 5222035, 5676125, 7460050, 10042375, 10444070, 11352250, 18650125, 20084750, 26110175, 37300250, 52220350, 130550875, 261101750]

約数ペア:

[(1, 261101750), (2, 130550875), (5, 52220350), (7, 37300250), (10, 26110175), (13, 20084750), (14, 18650125), (23, 11352250), (25, 10444070), (26, 10042375), (35, 7460050), (46, 5676125), (50, 5222035), (65, 4016950), (70, 3730025), (91, 2869250), (115, 2270450), (125, 2088814), (130, 2008475), (161, 1621750), (175, 1492010), (182, 1434625), (230, 1135225), (250, 1044407), (299, 873250), (322, 810875), (325, 803390), (350, 746005), (455, 573850), (499, 523250), (575, 454090), (598, 436625), (650, 401695), (805, 324350), (875, 298402), (910, 286925), (998, 261625), (1150, 227045), (1495, 174650), (1610, 162175), (1625, 160678), (1750, 149201), (2093, 124750), (2275, 114770), (2495, 104650), (2875, 90818), (2990, 87325), (3250, 80339), (3493, 74750), (4025, 64870), (4186, 62375), (4550, 57385), (4990, 52325), (5750, 45409), (6487, 40250), (6986, 37375), (7475, 34930), (8050, 32435), (10465, 24950), (11375, 22954), (11477, 22750), (12475, 20930), (12974, 20125), (14950, 17465)]