2221940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{269}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 5443200

約数和(自身を除く): 3221260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 59, 70, 118, 140, 236, 269, 295, 413, 538, 590, 826, 1076, 1180, 1345, 1652, 1883, 2065, 2690, 3766, 4130, 5380, 7532, 8260, 9415, 15871, 18830, 31742, 37660, 63484, 79355, 111097, 158710, 222194, 317420, 444388, 555485, 1110970, 2221940]

約数ペア:

[(1, 2221940), (2, 1110970), (4, 555485), (5, 444388), (7, 317420), (10, 222194), (14, 158710), (20, 111097), (28, 79355), (35, 63484), (59, 37660), (70, 31742), (118, 18830), (140, 15871), (236, 9415), (269, 8260), (295, 7532), (413, 5380), (538, 4130), (590, 3766), (826, 2690), (1076, 2065), (1180, 1883), (1345, 1652)]