72947960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:792

約数の個数: 64

約数和(自身を含む): 171590400

約数和(自身を除く): 98642440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 89, 124, 155, 178, 248, 310, 356, 445, 620, 661, 712, 890, 1240, 1322, 1780, 2644, 2759, 3305, 3560, 5288, 5518, 6610, 11036, 13220, 13795, 20491, 22072, 26440, 27590, 40982, 55180, 58829, 81964, 102455, 110360, 117658, 163928, 204910, 235316, 294145, 409820, 470632, 588290, 819640, 1176580, 1823699, 2353160, 3647398, 7294796, 9118495, 14589592, 18236990, 36473980, 72947960]

約数ペア:

[(1, 72947960), (2, 36473980), (4, 18236990), (5, 14589592), (8, 9118495), (10, 7294796), (20, 3647398), (31, 2353160), (40, 1823699), (62, 1176580), (89, 819640), (124, 588290), (155, 470632), (178, 409820), (248, 294145), (310, 235316), (356, 204910), (445, 163928), (620, 117658), (661, 110360), (712, 102455), (890, 81964), (1240, 58829), (1322, 55180), (1780, 40982), (2644, 27590), (2759, 26440), (3305, 22072), (3560, 20491), (5288, 13795), (5518, 13220), (6610, 11036)]