20458847512

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{355139}}^1$

素因数の和:355543

約数の個数: 32

約数和(自身を含む): 40485960000

約数和(自身を除く): 20027112488

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 379, 758, 1516, 3032, 7201, 14402, 28804, 57608, 355139, 710278, 1420556, 2841112, 6747641, 13495282, 26990564, 53981128, 134597681, 269195362, 538390724, 1076781448, 2557355939, 5114711878, 10229423756, 20458847512]

約数ペア:

[(1, 20458847512), (2, 10229423756), (4, 5114711878), (8, 2557355939), (19, 1076781448), (38, 538390724), (76, 269195362), (152, 134597681), (379, 53981128), (758, 26990564), (1516, 13495282), (3032, 6747641), (7201, 2841112), (14402, 1420556), (28804, 710278), (57608, 355139)]