20210307220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{901441}}^1$

素因数の和:901528

約数の個数: 48

約数和(自身を含む): 45432676800

約数和(自身を除く): 25222369580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 59, 76, 95, 118, 190, 236, 295, 380, 590, 1121, 1180, 2242, 4484, 5605, 11210, 22420, 901441, 1802882, 3605764, 4507205, 9014410, 17127379, 18028820, 34254758, 53185019, 68509516, 85636895, 106370038, 171273790, 212740076, 265925095, 342547580, 531850190, 1010515361, 1063700380, 2021030722, 4042061444, 5052576805, 10105153610, 20210307220]

約数ペア:

[(1, 20210307220), (2, 10105153610), (4, 5052576805), (5, 4042061444), (10, 2021030722), (19, 1063700380), (20, 1010515361), (38, 531850190), (59, 342547580), (76, 265925095), (95, 212740076), (118, 171273790), (190, 106370038), (236, 85636895), (295, 68509516), (380, 53185019), (590, 34254758), (1121, 18028820), (1180, 17127379), (2242, 9014410), (4484, 4507205), (5605, 3605764), (11210, 1802882), (22420, 901441)]