67908780

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:270

約数の個数: 144

約数和(自身を含む): 217395360

約数和(自身を除く): 149486580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 89, 90, 108, 135, 157, 162, 178, 180, 243, 267, 270, 314, 324, 356, 405, 445, 471, 486, 534, 540, 628, 785, 801, 810, 890, 942, 972, 1068, 1215, 1335, 1413, 1570, 1602, 1620, 1780, 1884, 2355, 2403, 2430, 2670, 2826, 3140, 3204, 4005, 4239, 4710, 4806, 4860, 5340, 5652, 7065, 7209, 8010, 8478, 9420, 9612, 12015, 12717, 13973, 14130, 14418, 16020, 16956, 21195, 21627, 24030, 25434, 27946, 28260, 28836, 36045, 38151, 41919, 42390, 43254, 48060, 50868, 55892, 63585, 69865, 72090, 76302, 83838, 84780, 86508, 108135, 125757, 127170, 139730, 144180, 152604, 167676, 190755, 209595, 216270, 251514, 254340, 279460, 377271, 381510, 419190, 432540, 503028, 628785, 754542, 763020, 838380, 1131813, 1257570, 1509084, 1886355, 2263626, 2515140, 3395439, 3772710, 4527252, 5659065, 6790878, 7545420, 11318130, 13581756, 16977195, 22636260, 33954390, 67908780]

約数ペア:

[(1, 67908780), (2, 33954390), (3, 22636260), (4, 16977195), (5, 13581756), (6, 11318130), (9, 7545420), (10, 6790878), (12, 5659065), (15, 4527252), (18, 3772710), (20, 3395439), (27, 2515140), (30, 2263626), (36, 1886355), (45, 1509084), (54, 1257570), (60, 1131813), (81, 838380), (89, 763020), (90, 754542), (108, 628785), (135, 503028), (157, 432540), (162, 419190), (178, 381510), (180, 377271), (243, 279460), (267, 254340), (270, 251514), (314, 216270), (324, 209595), (356, 190755), (405, 167676), (445, 152604), (471, 144180), (486, 139730), (534, 127170), (540, 125757), (628, 108135), (785, 86508), (801, 84780), (810, 83838), (890, 76302), (942, 72090), (972, 69865), (1068, 63585), (1215, 55892), (1335, 50868), (1413, 48060), (1570, 43254), (1602, 42390), (1620, 41919), (1780, 38151), (1884, 36045), (2355, 28836), (2403, 28260), (2430, 27946), (2670, 25434), (2826, 24030), (3140, 21627), (3204, 21195), (4005, 16956), (4239, 16020), (4710, 14418), (4806, 14130), (4860, 13973), (5340, 12717), (5652, 12015), (7065, 9612), (7209, 9420), (8010, 8478)]