20404670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{751}}^1$

素因数の和:801

約数の個数: 64

約数和(自身を含む): 45480960

約数和(自身を除く): 25076290

約数列:

[1, 2, 5, 10, 11, 13, 19, 22, 26, 38, 55, 65, 95, 110, 130, 143, 190, 209, 247, 286, 418, 494, 715, 751, 1045, 1235, 1430, 1502, 2090, 2470, 2717, 3755, 5434, 7510, 8261, 9763, 13585, 14269, 16522, 19526, 27170, 28538, 41305, 48815, 71345, 82610, 97630, 107393, 142690, 156959, 185497, 214786, 313918, 370994, 536965, 784795, 927485, 1073930, 1569590, 1854970, 2040467, 4080934, 10202335, 20404670]

約数ペア:

[(1, 20404670), (2, 10202335), (5, 4080934), (10, 2040467), (11, 1854970), (13, 1569590), (19, 1073930), (22, 927485), (26, 784795), (38, 536965), (55, 370994), (65, 313918), (95, 214786), (110, 185497), (130, 156959), (143, 142690), (190, 107393), (209, 97630), (247, 82610), (286, 71345), (418, 48815), (494, 41305), (715, 28538), (751, 27170), (1045, 19526), (1235, 16522), (1430, 14269), (1502, 13585), (2090, 9763), (2470, 8261), (2717, 7510), (3755, 5434)]