8923140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{557}}^1$

素因数の和:661

約数の個数: 72

約数和(自身を含む): 27420120

約数和(自身を除く): 18496980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 557, 801, 890, 1068, 1114, 1335, 1602, 1671, 1780, 2228, 2670, 2785, 3204, 3342, 4005, 5013, 5340, 5570, 6684, 8010, 8355, 10026, 11140, 16020, 16710, 20052, 25065, 33420, 49573, 50130, 99146, 100260, 148719, 198292, 247865, 297438, 446157, 495730, 594876, 743595, 892314, 991460, 1487190, 1784628, 2230785, 2974380, 4461570, 8923140]

約数ペア:

[(1, 8923140), (2, 4461570), (3, 2974380), (4, 2230785), (5, 1784628), (6, 1487190), (9, 991460), (10, 892314), (12, 743595), (15, 594876), (18, 495730), (20, 446157), (30, 297438), (36, 247865), (45, 198292), (60, 148719), (89, 100260), (90, 99146), (178, 50130), (180, 49573), (267, 33420), (356, 25065), (445, 20052), (534, 16710), (557, 16020), (801, 11140), (890, 10026), (1068, 8355), (1114, 8010), (1335, 6684), (1602, 5570), (1671, 5340), (1780, 5013), (2228, 4005), (2670, 3342), (2785, 3204)]