20300490

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{467}}^1$

素因数の和:513

約数の個数: 128

約数和(自身を含む): 64696320

約数和(自身を除く): 44395830

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 27, 30, 35, 42, 45, 46, 54, 63, 69, 70, 90, 105, 115, 126, 135, 138, 161, 189, 207, 210, 230, 270, 315, 322, 345, 378, 414, 467, 483, 621, 630, 690, 805, 934, 945, 966, 1035, 1242, 1401, 1449, 1610, 1890, 2070, 2335, 2415, 2802, 2898, 3105, 3269, 4203, 4347, 4670, 4830, 6210, 6538, 7005, 7245, 8406, 8694, 9807, 10741, 12609, 14010, 14490, 16345, 19614, 21015, 21482, 21735, 25218, 29421, 32223, 32690, 42030, 43470, 49035, 53705, 58842, 63045, 64446, 75187, 88263, 96669, 98070, 107410, 126090, 147105, 150374, 161115, 176526, 193338, 225561, 290007, 294210, 322230, 375935, 441315, 451122, 483345, 580014, 676683, 751870, 882630, 966690, 1127805, 1353366, 1450035, 2030049, 2255610, 2900070, 3383415, 4060098, 6766830, 10150245, 20300490]

約数ペア:

[(1, 20300490), (2, 10150245), (3, 6766830), (5, 4060098), (6, 3383415), (7, 2900070), (9, 2255610), (10, 2030049), (14, 1450035), (15, 1353366), (18, 1127805), (21, 966690), (23, 882630), (27, 751870), (30, 676683), (35, 580014), (42, 483345), (45, 451122), (46, 441315), (54, 375935), (63, 322230), (69, 294210), (70, 290007), (90, 225561), (105, 193338), (115, 176526), (126, 161115), (135, 150374), (138, 147105), (161, 126090), (189, 107410), (207, 98070), (210, 96669), (230, 88263), (270, 75187), (315, 64446), (322, 63045), (345, 58842), (378, 53705), (414, 49035), (467, 43470), (483, 42030), (621, 32690), (630, 32223), (690, 29421), (805, 25218), (934, 21735), (945, 21482), (966, 21015), (1035, 19614), (1242, 16345), (1401, 14490), (1449, 14010), (1610, 12609), (1890, 10741), (2070, 9807), (2335, 8694), (2415, 8406), (2802, 7245), (2898, 7005), (3105, 6538), (3269, 6210), (4203, 4830), (4347, 4670)]