61790920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1021}}^1$

素因数の和:1138

約数の個数: 64

約数和(自身を含む): 149007600

約数和(自身を除く): 87216680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 89, 136, 170, 178, 340, 356, 445, 680, 712, 890, 1021, 1513, 1780, 2042, 3026, 3560, 4084, 5105, 6052, 7565, 8168, 10210, 12104, 15130, 17357, 20420, 30260, 34714, 40840, 60520, 69428, 86785, 90869, 138856, 173570, 181738, 347140, 363476, 454345, 694280, 726952, 908690, 1544773, 1817380, 3089546, 3634760, 6179092, 7723865, 12358184, 15447730, 30895460, 61790920]

約数ペア:

[(1, 61790920), (2, 30895460), (4, 15447730), (5, 12358184), (8, 7723865), (10, 6179092), (17, 3634760), (20, 3089546), (34, 1817380), (40, 1544773), (68, 908690), (85, 726952), (89, 694280), (136, 454345), (170, 363476), (178, 347140), (340, 181738), (356, 173570), (445, 138856), (680, 90869), (712, 86785), (890, 69428), (1021, 60520), (1513, 40840), (1780, 34714), (2042, 30260), (3026, 20420), (3560, 17357), (4084, 15130), (5105, 12104), (6052, 10210), (7565, 8168)]