20307690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1021}}^1$

素因数の和:1064

約数の個数: 96

約数和(自身を含む): 60265296

約数和(自身を除く): 39957606

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 17, 18, 26, 30, 34, 39, 45, 51, 65, 78, 85, 90, 102, 117, 130, 153, 170, 195, 221, 234, 255, 306, 390, 442, 510, 585, 663, 765, 1021, 1105, 1170, 1326, 1530, 1989, 2042, 2210, 3063, 3315, 3978, 5105, 6126, 6630, 9189, 9945, 10210, 13273, 15315, 17357, 18378, 19890, 26546, 30630, 34714, 39819, 45945, 52071, 66365, 79638, 86785, 91890, 104142, 119457, 132730, 156213, 173570, 199095, 225641, 238914, 260355, 312426, 398190, 451282, 520710, 597285, 676923, 781065, 1128205, 1194570, 1353846, 1562130, 2030769, 2256410, 3384615, 4061538, 6769230, 10153845, 20307690]

約数ペア:

[(1, 20307690), (2, 10153845), (3, 6769230), (5, 4061538), (6, 3384615), (9, 2256410), (10, 2030769), (13, 1562130), (15, 1353846), (17, 1194570), (18, 1128205), (26, 781065), (30, 676923), (34, 597285), (39, 520710), (45, 451282), (51, 398190), (65, 312426), (78, 260355), (85, 238914), (90, 225641), (102, 199095), (117, 173570), (130, 156213), (153, 132730), (170, 119457), (195, 104142), (221, 91890), (234, 86785), (255, 79638), (306, 66365), (390, 52071), (442, 45945), (510, 39819), (585, 34714), (663, 30630), (765, 26546), (1021, 19890), (1105, 18378), (1170, 17357), (1326, 15315), (1530, 13273), (1989, 10210), (2042, 9945), (2210, 9189), (3063, 6630), (3315, 6126), (3978, 5105)]