8907220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 22264200

約数和(自身を除く): 13356980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 140, 149, 196, 244, 245, 298, 305, 427, 490, 596, 610, 745, 854, 980, 1043, 1220, 1490, 1708, 2086, 2135, 2980, 2989, 4172, 4270, 5215, 5978, 7301, 8540, 9089, 10430, 11956, 14602, 14945, 18178, 20860, 29204, 29890, 36356, 36505, 45445, 59780, 63623, 73010, 90890, 127246, 146020, 181780, 254492, 318115, 445361, 636230, 890722, 1272460, 1781444, 2226805, 4453610, 8907220]

約数ペア:

[(1, 8907220), (2, 4453610), (4, 2226805), (5, 1781444), (7, 1272460), (10, 890722), (14, 636230), (20, 445361), (28, 318115), (35, 254492), (49, 181780), (61, 146020), (70, 127246), (98, 90890), (122, 73010), (140, 63623), (149, 59780), (196, 45445), (244, 36505), (245, 36356), (298, 29890), (305, 29204), (427, 20860), (490, 18178), (596, 14945), (610, 14602), (745, 11956), (854, 10430), (980, 9089), (1043, 8540), (1220, 7301), (1490, 5978), (1708, 5215), (2086, 4270), (2135, 4172), (2980, 2989)]