20707360

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1$

素因数の和:386

約数の個数: 96

約数和(自身を含む): 54214272

約数和(自身を除く): 33506912

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 68, 80, 85, 92, 115, 136, 160, 170, 184, 230, 272, 331, 340, 368, 391, 460, 544, 662, 680, 736, 782, 920, 1324, 1360, 1564, 1655, 1840, 1955, 2648, 2720, 3128, 3310, 3680, 3910, 5296, 5627, 6256, 6620, 7613, 7820, 10592, 11254, 12512, 13240, 15226, 15640, 22508, 26480, 28135, 30452, 31280, 38065, 45016, 52960, 56270, 60904, 62560, 76130, 90032, 112540, 121808, 129421, 152260, 180064, 225080, 243616, 258842, 304520, 450160, 517684, 609040, 647105, 900320, 1035368, 1218080, 1294210, 2070736, 2588420, 4141472, 5176840, 10353680, 20707360]

約数ペア:

[(1, 20707360), (2, 10353680), (4, 5176840), (5, 4141472), (8, 2588420), (10, 2070736), (16, 1294210), (17, 1218080), (20, 1035368), (23, 900320), (32, 647105), (34, 609040), (40, 517684), (46, 450160), (68, 304520), (80, 258842), (85, 243616), (92, 225080), (115, 180064), (136, 152260), (160, 129421), (170, 121808), (184, 112540), (230, 90032), (272, 76130), (331, 62560), (340, 60904), (368, 56270), (391, 52960), (460, 45016), (544, 38065), (662, 31280), (680, 30452), (736, 28135), (782, 26480), (920, 22508), (1324, 15640), (1360, 15226), (1564, 13240), (1655, 12512), (1840, 11254), (1955, 10592), (2648, 7820), (2720, 7613), (3128, 6620), (3310, 6256), (3680, 5627), (3910, 5296)]