201628790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:429

約数の個数: 64

約数和(自身を含む): 407116800

約数和(自身を除く): 205488010

約数列:

[1, 2, 5, 10, 11, 22, 55, 61, 110, 122, 151, 199, 302, 305, 398, 610, 671, 755, 995, 1342, 1510, 1661, 1990, 2189, 3322, 3355, 4378, 6710, 8305, 9211, 10945, 12139, 16610, 18422, 21890, 24278, 30049, 46055, 60098, 60695, 92110, 101321, 121390, 133529, 150245, 202642, 267058, 300490, 330539, 506605, 661078, 667645, 1013210, 1335290, 1652695, 1832989, 3305390, 3665978, 9164945, 18329890, 20162879, 40325758, 100814395, 201628790]

約数ペア:

[(1, 201628790), (2, 100814395), (5, 40325758), (10, 20162879), (11, 18329890), (22, 9164945), (55, 3665978), (61, 3305390), (110, 1832989), (122, 1652695), (151, 1335290), (199, 1013210), (302, 667645), (305, 661078), (398, 506605), (610, 330539), (671, 300490), (755, 267058), (995, 202642), (1342, 150245), (1510, 133529), (1661, 121390), (1990, 101321), (2189, 92110), (3322, 60695), (3355, 60098), (4378, 46055), (6710, 30049), (8305, 24278), (9211, 21890), (10945, 18422), (12139, 16610)]