81778980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{18671}}^1$

素因数の和:18756

約数の個数: 48

約数和(自身を含む): 232130304

約数和(自身を除く): 150351324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4380, 18671, 37342, 56013, 74684, 93355, 112026, 186710, 224052, 280065, 373420, 560130, 1120260, 1362983, 2725966, 4088949, 5451932, 6814915, 8177898, 13629830, 16355796, 20444745, 27259660, 40889490, 81778980]

約数ペア:

[(1, 81778980), (2, 40889490), (3, 27259660), (4, 20444745), (5, 16355796), (6, 13629830), (10, 8177898), (12, 6814915), (15, 5451932), (20, 4088949), (30, 2725966), (60, 1362983), (73, 1120260), (146, 560130), (219, 373420), (292, 280065), (365, 224052), (438, 186710), (730, 112026), (876, 93355), (1095, 74684), (1460, 56013), (2190, 37342), (4380, 18671)]