1966900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:133

約数の個数: 72

約数和(自身を含む): 4921560

約数和(自身を除く): 2954660

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 89, 100, 130, 170, 178, 221, 260, 325, 340, 356, 425, 442, 445, 650, 850, 884, 890, 1105, 1157, 1300, 1513, 1700, 1780, 2210, 2225, 2314, 3026, 4420, 4450, 4628, 5525, 5785, 6052, 7565, 8900, 11050, 11570, 15130, 19669, 22100, 23140, 28925, 30260, 37825, 39338, 57850, 75650, 78676, 98345, 115700, 151300, 196690, 393380, 491725, 983450, 1966900]

約数ペア:

[(1, 1966900), (2, 983450), (4, 491725), (5, 393380), (10, 196690), (13, 151300), (17, 115700), (20, 98345), (25, 78676), (26, 75650), (34, 57850), (50, 39338), (52, 37825), (65, 30260), (68, 28925), (85, 23140), (89, 22100), (100, 19669), (130, 15130), (170, 11570), (178, 11050), (221, 8900), (260, 7565), (325, 6052), (340, 5785), (356, 5525), (425, 4628), (442, 4450), (445, 4420), (650, 3026), (850, 2314), (884, 2225), (890, 2210), (1105, 1780), (1157, 1700), (1300, 1513)]