199454980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{2039}}^1$

素因数の和:2188

約数の個数: 48

約数和(自身を含む): 431141760

約数和(自身を除く): 231686780

約数列:

[1, 2, 4, 5, 10, 20, 67, 73, 134, 146, 268, 292, 335, 365, 670, 730, 1340, 1460, 2039, 4078, 4891, 8156, 9782, 10195, 19564, 20390, 24455, 40780, 48910, 97820, 136613, 148847, 273226, 297694, 546452, 595388, 683065, 744235, 1366130, 1488470, 2732260, 2976940, 9972749, 19945498, 39890996, 49863745, 99727490, 199454980]

約数ペア:

[(1, 199454980), (2, 99727490), (4, 49863745), (5, 39890996), (10, 19945498), (20, 9972749), (67, 2976940), (73, 2732260), (134, 1488470), (146, 1366130), (268, 744235), (292, 683065), (335, 595388), (365, 546452), (670, 297694), (730, 273226), (1340, 148847), (1460, 136613), (2039, 97820), (4078, 48910), (4891, 40780), (8156, 24455), (9782, 20390), (10195, 19564)]