19366991380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{109}}^1\times {\mathrm{73421}}^1$

素因数の和:73561

約数の個数: 72

約数和(自身を含む): 45114882120

約数和(自身を除く): 25747890740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 121, 218, 220, 242, 436, 484, 545, 605, 1090, 1199, 1210, 2180, 2398, 2420, 4796, 5995, 11990, 13189, 23980, 26378, 52756, 65945, 73421, 131890, 146842, 263780, 293684, 367105, 734210, 807631, 1468420, 1615262, 3230524, 4038155, 8002889, 8076310, 8883941, 16005778, 16152620, 17767882, 32011556, 35535764, 40014445, 44419705, 80028890, 88031779, 88839410, 160057780, 176063558, 177678820, 352127116, 440158895, 880317790, 968349569, 1760635580, 1936699138, 3873398276, 4841747845, 9683495690, 19366991380]

約数ペア:

[(1, 19366991380), (2, 9683495690), (4, 4841747845), (5, 3873398276), (10, 1936699138), (11, 1760635580), (20, 968349569), (22, 880317790), (44, 440158895), (55, 352127116), (109, 177678820), (110, 176063558), (121, 160057780), (218, 88839410), (220, 88031779), (242, 80028890), (436, 44419705), (484, 40014445), (545, 35535764), (605, 32011556), (1090, 17767882), (1199, 16152620), (1210, 16005778), (2180, 8883941), (2398, 8076310), (2420, 8002889), (4796, 4038155), (5995, 3230524), (11990, 1615262), (13189, 1468420), (23980, 807631), (26378, 734210), (52756, 367105), (65945, 293684), (73421, 263780), (131890, 146842)]