1977950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1$

素因数の和:221

約数の個数: 48

約数和(自身を含む): 4218480

約数和(自身を除く): 2240530

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 130, 170, 179, 221, 325, 358, 425, 442, 650, 850, 895, 1105, 1790, 2210, 2327, 3043, 4475, 4654, 5525, 6086, 8950, 11050, 11635, 15215, 23270, 30430, 39559, 58175, 76075, 79118, 116350, 152150, 197795, 395590, 988975, 1977950]

約数ペア:

[(1, 1977950), (2, 988975), (5, 395590), (10, 197795), (13, 152150), (17, 116350), (25, 79118), (26, 76075), (34, 58175), (50, 39559), (65, 30430), (85, 23270), (130, 15215), (170, 11635), (179, 11050), (221, 8950), (325, 6086), (358, 5525), (425, 4654), (442, 4475), (650, 3043), (850, 2327), (895, 2210), (1105, 1790)]