2019093020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{20399}}^1$

素因数の和:20523

約数の個数: 72

約数和(自身を含む): 4981435200

約数和(自身を除く): 2962342180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 101, 140, 196, 202, 245, 404, 490, 505, 707, 980, 1010, 1414, 2020, 2828, 3535, 4949, 7070, 9898, 14140, 19796, 20399, 24745, 40798, 49490, 81596, 98980, 101995, 142793, 203990, 285586, 407980, 571172, 713965, 999551, 1427930, 1999102, 2060299, 2855860, 3998204, 4120598, 4997755, 8241196, 9995510, 10301495, 14422093, 19991020, 20602990, 28844186, 41205980, 57688372, 72110465, 100954651, 144220930, 201909302, 288441860, 403818604, 504773255, 1009546510, 2019093020]

約数ペア:

[(1, 2019093020), (2, 1009546510), (4, 504773255), (5, 403818604), (7, 288441860), (10, 201909302), (14, 144220930), (20, 100954651), (28, 72110465), (35, 57688372), (49, 41205980), (70, 28844186), (98, 20602990), (101, 19991020), (140, 14422093), (196, 10301495), (202, 9995510), (245, 8241196), (404, 4997755), (490, 4120598), (505, 3998204), (707, 2855860), (980, 2060299), (1010, 1999102), (1414, 1427930), (2020, 999551), (2828, 713965), (3535, 571172), (4949, 407980), (7070, 285586), (9898, 203990), (14140, 142793), (19796, 101995), (20399, 98980), (24745, 81596), (40798, 49490)]