65219980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1091}}^1$

素因数の和:1175

約数の個数: 72

約数和(自身を含む): 162083376

約数和(自身を除く): 96863396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 140, 196, 244, 245, 305, 427, 490, 610, 854, 980, 1091, 1220, 1708, 2135, 2182, 2989, 4270, 4364, 5455, 5978, 7637, 8540, 10910, 11956, 14945, 15274, 21820, 29890, 30548, 38185, 53459, 59780, 66551, 76370, 106918, 133102, 152740, 213836, 266204, 267295, 332755, 465857, 534590, 665510, 931714, 1069180, 1331020, 1863428, 2329285, 3260999, 4658570, 6521998, 9317140, 13043996, 16304995, 32609990, 65219980]

約数ペア:

[(1, 65219980), (2, 32609990), (4, 16304995), (5, 13043996), (7, 9317140), (10, 6521998), (14, 4658570), (20, 3260999), (28, 2329285), (35, 1863428), (49, 1331020), (61, 1069180), (70, 931714), (98, 665510), (122, 534590), (140, 465857), (196, 332755), (244, 267295), (245, 266204), (305, 213836), (427, 152740), (490, 133102), (610, 106918), (854, 76370), (980, 66551), (1091, 59780), (1220, 53459), (1708, 38185), (2135, 30548), (2182, 29890), (2989, 21820), (4270, 15274), (4364, 14945), (5455, 11956), (5978, 10910), (7637, 8540)]