221361250

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{947}}^1$

素因数の和:997

約数の個数: 80

約数和(自身を含む): 479771424

約数和(自身を除く): 258410174

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 50, 55, 85, 110, 125, 170, 187, 250, 275, 374, 425, 550, 625, 850, 935, 947, 1250, 1375, 1870, 1894, 2125, 2750, 4250, 4675, 4735, 6875, 9350, 9470, 10417, 10625, 13750, 16099, 20834, 21250, 23375, 23675, 32198, 46750, 47350, 52085, 80495, 104170, 116875, 118375, 160990, 177089, 233750, 236750, 260425, 354178, 402475, 520850, 591875, 804950, 885445, 1183750, 1302125, 1770890, 2012375, 2604250, 4024750, 4427225, 6510625, 8854450, 10061875, 13021250, 20123750, 22136125, 44272250, 110680625, 221361250]

約数ペア:

[(1, 221361250), (2, 110680625), (5, 44272250), (10, 22136125), (11, 20123750), (17, 13021250), (22, 10061875), (25, 8854450), (34, 6510625), (50, 4427225), (55, 4024750), (85, 2604250), (110, 2012375), (125, 1770890), (170, 1302125), (187, 1183750), (250, 885445), (275, 804950), (374, 591875), (425, 520850), (550, 402475), (625, 354178), (850, 260425), (935, 236750), (947, 233750), (1250, 177089), (1375, 160990), (1870, 118375), (1894, 116875), (2125, 104170), (2750, 80495), (4250, 52085), (4675, 47350), (4735, 46750), (6875, 32198), (9350, 23675), (9470, 23375), (10417, 21250), (10625, 20834), (13750, 16099)]