19660219150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{249971}}^1$

素因数の和:250018

約数の個数: 72

約数和(自身を含む): 43286651352

約数和(自身を除く): 23626432202

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 121, 130, 143, 242, 275, 286, 325, 550, 605, 650, 715, 1210, 1430, 1573, 3025, 3146, 3575, 6050, 7150, 7865, 15730, 39325, 78650, 249971, 499942, 1249855, 2499710, 2749681, 3249623, 5499362, 6249275, 6499246, 12498550, 13748405, 16248115, 27496810, 30246491, 32496230, 35745853, 60492982, 68742025, 71491706, 81240575, 137484050, 151232455, 162481150, 178729265, 302464910, 357458530, 393204383, 756162275, 786408766, 893646325, 1512324550, 1787292650, 1966021915, 3932043830, 9830109575, 19660219150]

約数ペア:

[(1, 19660219150), (2, 9830109575), (5, 3932043830), (10, 1966021915), (11, 1787292650), (13, 1512324550), (22, 893646325), (25, 786408766), (26, 756162275), (50, 393204383), (55, 357458530), (65, 302464910), (110, 178729265), (121, 162481150), (130, 151232455), (143, 137484050), (242, 81240575), (275, 71491706), (286, 68742025), (325, 60492982), (550, 35745853), (605, 32496230), (650, 30246491), (715, 27496810), (1210, 16248115), (1430, 13748405), (1573, 12498550), (3025, 6499246), (3146, 6249275), (3575, 5499362), (6050, 3249623), (7150, 2749681), (7865, 2499710), (15730, 1249855), (39325, 499942), (78650, 249971)]