19800630

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:242

約数の個数: 96

約数和(自身を含む): 54632448

約数和(自身を除く): 34831818

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 47, 62, 90, 93, 94, 141, 151, 155, 186, 235, 279, 282, 302, 310, 423, 453, 465, 470, 558, 705, 755, 846, 906, 930, 1359, 1395, 1410, 1457, 1510, 2115, 2265, 2718, 2790, 2914, 4230, 4371, 4530, 4681, 6795, 7097, 7285, 8742, 9362, 13113, 13590, 14043, 14194, 14570, 21291, 21855, 23405, 26226, 28086, 35485, 42129, 42582, 43710, 46810, 63873, 65565, 70215, 70970, 84258, 106455, 127746, 131130, 140430, 210645, 212910, 220007, 319365, 421290, 440014, 638730, 660021, 1100035, 1320042, 1980063, 2200070, 3300105, 3960126, 6600210, 9900315, 19800630]

約数ペア:

[(1, 19800630), (2, 9900315), (3, 6600210), (5, 3960126), (6, 3300105), (9, 2200070), (10, 1980063), (15, 1320042), (18, 1100035), (30, 660021), (31, 638730), (45, 440014), (47, 421290), (62, 319365), (90, 220007), (93, 212910), (94, 210645), (141, 140430), (151, 131130), (155, 127746), (186, 106455), (235, 84258), (279, 70970), (282, 70215), (302, 65565), (310, 63873), (423, 46810), (453, 43710), (465, 42582), (470, 42129), (558, 35485), (705, 28086), (755, 26226), (846, 23405), (906, 21855), (930, 21291), (1359, 14570), (1395, 14194), (1410, 14043), (1457, 13590), (1510, 13113), (2115, 9362), (2265, 8742), (2718, 7285), (2790, 7097), (2914, 6795), (4230, 4681), (4371, 4530)]