19640520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{613}}^1$

素因数の和:719

約数の個数: 96

約数和(自身を含む): 64654200

約数和(自身を除く): 45013680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 89, 90, 120, 178, 180, 267, 356, 360, 445, 534, 613, 712, 801, 890, 1068, 1226, 1335, 1602, 1780, 1839, 2136, 2452, 2670, 3065, 3204, 3560, 3678, 4005, 4904, 5340, 5517, 6130, 6408, 7356, 8010, 9195, 10680, 11034, 12260, 14712, 16020, 18390, 22068, 24520, 27585, 32040, 36780, 44136, 54557, 55170, 73560, 109114, 110340, 163671, 218228, 220680, 272785, 327342, 436456, 491013, 545570, 654684, 818355, 982026, 1091140, 1309368, 1636710, 1964052, 2182280, 2455065, 3273420, 3928104, 4910130, 6546840, 9820260, 19640520]

約数ペア:

[(1, 19640520), (2, 9820260), (3, 6546840), (4, 4910130), (5, 3928104), (6, 3273420), (8, 2455065), (9, 2182280), (10, 1964052), (12, 1636710), (15, 1309368), (18, 1091140), (20, 982026), (24, 818355), (30, 654684), (36, 545570), (40, 491013), (45, 436456), (60, 327342), (72, 272785), (89, 220680), (90, 218228), (120, 163671), (178, 110340), (180, 109114), (267, 73560), (356, 55170), (360, 54557), (445, 44136), (534, 36780), (613, 32040), (712, 27585), (801, 24520), (890, 22068), (1068, 18390), (1226, 16020), (1335, 14712), (1602, 12260), (1780, 11034), (1839, 10680), (2136, 9195), (2452, 8010), (2670, 7356), (3065, 6408), (3204, 6130), (3560, 5517), (3678, 5340), (4005, 4904)]