20739802580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1466747}}^1$

素因数の和:1466864

約数の個数: 48

約数和(自身を含む): 50268387456

約数和(自身を除く): 29528584876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 3535, 7070, 14140, 1466747, 2933494, 5866988, 7333735, 10267229, 14667470, 20534458, 29334940, 41068916, 51336145, 102672290, 148141447, 205344580, 296282894, 592565788, 740707235, 1036990129, 1481414470, 2073980258, 2962828940, 4147960516, 5184950645, 10369901290, 20739802580]

約数ペア:

[(1, 20739802580), (2, 10369901290), (4, 5184950645), (5, 4147960516), (7, 2962828940), (10, 2073980258), (14, 1481414470), (20, 1036990129), (28, 740707235), (35, 592565788), (70, 296282894), (101, 205344580), (140, 148141447), (202, 102672290), (404, 51336145), (505, 41068916), (707, 29334940), (1010, 20534458), (1414, 14667470), (2020, 10267229), (2828, 7333735), (3535, 5866988), (7070, 2933494), (14140, 1466747)]