1916804540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{13127}}^1$

素因数の和:13299

約数の個数: 72

約数和(自身を含む): 4714264800

約数和(自身を除く): 2797460260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 149, 196, 245, 298, 490, 596, 745, 980, 1043, 1490, 2086, 2980, 4172, 5215, 7301, 10430, 13127, 14602, 20860, 26254, 29204, 36505, 52508, 65635, 73010, 91889, 131270, 146020, 183778, 262540, 367556, 459445, 643223, 918890, 1286446, 1837780, 1955923, 2572892, 3216115, 3911846, 6432230, 7823692, 9779615, 12864460, 13691461, 19559230, 27382922, 39118460, 54765844, 68457305, 95840227, 136914610, 191680454, 273829220, 383360908, 479201135, 958402270, 1916804540]

約数ペア:

[(1, 1916804540), (2, 958402270), (4, 479201135), (5, 383360908), (7, 273829220), (10, 191680454), (14, 136914610), (20, 95840227), (28, 68457305), (35, 54765844), (49, 39118460), (70, 27382922), (98, 19559230), (140, 13691461), (149, 12864460), (196, 9779615), (245, 7823692), (298, 6432230), (490, 3911846), (596, 3216115), (745, 2572892), (980, 1955923), (1043, 1837780), (1490, 1286446), (2086, 918890), (2980, 643223), (4172, 459445), (5215, 367556), (7301, 262540), (10430, 183778), (13127, 146020), (14602, 131270), (20860, 91889), (26254, 73010), (29204, 65635), (36505, 52508)]