201556940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{40801}}^1$

素因数の和:40842

約数の個数: 48

約数和(自身を含む): 479831520

約数和(自身を除く): 278274580

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 40801, 81602, 163204, 204005, 408010, 530413, 775219, 816020, 1060826, 1550438, 2121652, 2652065, 3100876, 3876095, 5304130, 7752190, 10077847, 10608260, 15504380, 20155694, 40311388, 50389235, 100778470, 201556940]

約数ペア:

[(1, 201556940), (2, 100778470), (4, 50389235), (5, 40311388), (10, 20155694), (13, 15504380), (19, 10608260), (20, 10077847), (26, 7752190), (38, 5304130), (52, 3876095), (65, 3100876), (76, 2652065), (95, 2121652), (130, 1550438), (190, 1060826), (247, 816020), (260, 775219), (380, 530413), (494, 408010), (988, 204005), (1235, 163204), (2470, 81602), (4940, 40801)]