79872940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{547}}^1$

素因数の和:719

約数の個数: 72

約数和(自身を含む): 196786800

約数和(自身を除く): 116913860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 149, 196, 245, 298, 490, 547, 596, 745, 980, 1043, 1094, 1490, 2086, 2188, 2735, 2980, 3829, 4172, 5215, 5470, 7301, 7658, 10430, 10940, 14602, 15316, 19145, 20860, 26803, 29204, 36505, 38290, 53606, 73010, 76580, 81503, 107212, 134015, 146020, 163006, 268030, 326012, 407515, 536060, 570521, 815030, 1141042, 1630060, 2282084, 2852605, 3993647, 5705210, 7987294, 11410420, 15974588, 19968235, 39936470, 79872940]

約数ペア:

[(1, 79872940), (2, 39936470), (4, 19968235), (5, 15974588), (7, 11410420), (10, 7987294), (14, 5705210), (20, 3993647), (28, 2852605), (35, 2282084), (49, 1630060), (70, 1141042), (98, 815030), (140, 570521), (149, 536060), (196, 407515), (245, 326012), (298, 268030), (490, 163006), (547, 146020), (596, 134015), (745, 107212), (980, 81503), (1043, 76580), (1094, 73010), (1490, 53606), (2086, 38290), (2188, 36505), (2735, 29204), (2980, 26803), (3829, 20860), (4172, 19145), (5215, 15316), (5470, 14602), (7301, 10940), (7658, 10430)]