251298460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{11149}}^1$

素因数の和:11195

約数の個数: 72

約数和(自身を含む): 640634400

約数和(自身を除く): 389335940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 2254, 3220, 4508, 5635, 11149, 11270, 22298, 22540, 44596, 55745, 78043, 111490, 156086, 222980, 256427, 312172, 390215, 512854, 546301, 780430, 1025708, 1092602, 1282135, 1560860, 1794989, 2185204, 2564270, 2731505, 3589978, 5128540, 5463010, 7179956, 8974945, 10926020, 12564923, 17949890, 25129846, 35899780, 50259692, 62824615, 125649230, 251298460]

約数ペア:

[(1, 251298460), (2, 125649230), (4, 62824615), (5, 50259692), (7, 35899780), (10, 25129846), (14, 17949890), (20, 12564923), (23, 10926020), (28, 8974945), (35, 7179956), (46, 5463010), (49, 5128540), (70, 3589978), (92, 2731505), (98, 2564270), (115, 2185204), (140, 1794989), (161, 1560860), (196, 1282135), (230, 1092602), (245, 1025708), (322, 780430), (460, 546301), (490, 512854), (644, 390215), (805, 312172), (980, 256427), (1127, 222980), (1610, 156086), (2254, 111490), (3220, 78043), (4508, 55745), (5635, 44596), (11149, 22540), (11270, 22298)]