2190372275

素因数分解:

$5^2\times 7^5\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 3420968544

約数和(自身を除く): 1230596269

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 175, 245, 325, 343, 401, 455, 637, 1225, 1715, 2005, 2275, 2401, 2807, 3185, 4459, 5213, 8575, 10025, 12005, 14035, 15925, 16807, 19649, 22295, 26065, 31213, 36491, 60025, 70175, 84035, 98245, 111475, 130325, 137543, 156065, 182455, 218491, 255437, 420175, 491225, 687715, 780325, 912275, 962801, 1092455, 1277185, 1788059, 3438575, 4814005, 5462275, 6385925, 6739607, 8940295, 12516413, 24070025, 33698035, 44701475, 62582065, 87614891, 168490175, 312910325, 438074455, 2190372275]

約数ペア:

[(1, 2190372275), (5, 438074455), (7, 312910325), (13, 168490175), (25, 87614891), (35, 62582065), (49, 44701475), (65, 33698035), (91, 24070025), (175, 12516413), (245, 8940295), (325, 6739607), (343, 6385925), (401, 5462275), (455, 4814005), (637, 3438575), (1225, 1788059), (1715, 1277185), (2005, 1092455), (2275, 962801), (2401, 912275), (2807, 780325), (3185, 687715), (4459, 491225), (5213, 420175), (8575, 255437), (10025, 218491), (12005, 182455), (14035, 156065), (15925, 137543), (16807, 130325), (19649, 111475), (22295, 98245), (26065, 84035), (31213, 70175), (36491, 60025)]