221655720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{12917}}^1$

素因数の和:12955

約数の個数: 128

約数和(自身を含む): 781280640

約数和(自身を除く): 559624920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 20, 22, 24, 26, 30, 33, 39, 40, 44, 52, 55, 60, 65, 66, 78, 88, 104, 110, 120, 130, 132, 143, 156, 165, 195, 220, 260, 264, 286, 312, 330, 390, 429, 440, 520, 572, 660, 715, 780, 858, 1144, 1320, 1430, 1560, 1716, 2145, 2860, 3432, 4290, 5720, 8580, 12917, 17160, 25834, 38751, 51668, 64585, 77502, 103336, 129170, 142087, 155004, 167921, 193755, 258340, 284174, 310008, 335842, 387510, 426261, 503763, 516680, 568348, 671684, 710435, 775020, 839605, 852522, 1007526, 1136696, 1343368, 1420870, 1550040, 1679210, 1705044, 1847131, 2015052, 2131305, 2518815, 2841740, 3358420, 3410088, 3694262, 4030104, 4262610, 5037630, 5541393, 5683480, 6716840, 7388524, 8525220, 9235655, 10075260, 11082786, 14777048, 17050440, 18471310, 20150520, 22165572, 27706965, 36942620, 44331144, 55413930, 73885240, 110827860, 221655720]

約数ペア:

[(1, 221655720), (2, 110827860), (3, 73885240), (4, 55413930), (5, 44331144), (6, 36942620), (8, 27706965), (10, 22165572), (11, 20150520), (12, 18471310), (13, 17050440), (15, 14777048), (20, 11082786), (22, 10075260), (24, 9235655), (26, 8525220), (30, 7388524), (33, 6716840), (39, 5683480), (40, 5541393), (44, 5037630), (52, 4262610), (55, 4030104), (60, 3694262), (65, 3410088), (66, 3358420), (78, 2841740), (88, 2518815), (104, 2131305), (110, 2015052), (120, 1847131), (130, 1705044), (132, 1679210), (143, 1550040), (156, 1420870), (165, 1343368), (195, 1136696), (220, 1007526), (260, 852522), (264, 839605), (286, 775020), (312, 710435), (330, 671684), (390, 568348), (429, 516680), (440, 503763), (520, 426261), (572, 387510), (660, 335842), (715, 310008), (780, 284174), (858, 258340), (1144, 193755), (1320, 167921), (1430, 155004), (1560, 142087), (1716, 129170), (2145, 103336), (2860, 77502), (3432, 64585), (4290, 51668), (5720, 38751), (8580, 25834), (12917, 17160)]