2019402520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{6803}}^1$

素因数の和:7036

約数の個数: 64

約数和(自身を含む): 4680879840

約数和(自身を除く): 2661477320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 181, 205, 328, 362, 410, 724, 820, 905, 1448, 1640, 1810, 3620, 6803, 7240, 7421, 13606, 14842, 27212, 29684, 34015, 37105, 54424, 59368, 68030, 74210, 136060, 148420, 272120, 278923, 296840, 557846, 1115692, 1231343, 1394615, 2231384, 2462686, 2789230, 4925372, 5578460, 6156715, 9850744, 11156920, 12313430, 24626860, 49253720, 50485063, 100970126, 201940252, 252425315, 403880504, 504850630, 1009701260, 2019402520]

約数ペア:

[(1, 2019402520), (2, 1009701260), (4, 504850630), (5, 403880504), (8, 252425315), (10, 201940252), (20, 100970126), (40, 50485063), (41, 49253720), (82, 24626860), (164, 12313430), (181, 11156920), (205, 9850744), (328, 6156715), (362, 5578460), (410, 4925372), (724, 2789230), (820, 2462686), (905, 2231384), (1448, 1394615), (1640, 1231343), (1810, 1115692), (3620, 557846), (6803, 296840), (7240, 278923), (7421, 272120), (13606, 148420), (14842, 136060), (27212, 74210), (29684, 68030), (34015, 59368), (37105, 54424)]