9731990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 20528640

約数和(自身を除く): 10796650

約数列:

[1, 2, 5, 10, 17, 19, 23, 34, 38, 46, 85, 95, 115, 131, 170, 190, 230, 262, 323, 391, 437, 646, 655, 782, 874, 1310, 1615, 1955, 2185, 2227, 2489, 3013, 3230, 3910, 4370, 4454, 4978, 6026, 7429, 11135, 12445, 14858, 15065, 22270, 24890, 30130, 37145, 42313, 51221, 57247, 74290, 84626, 102442, 114494, 211565, 256105, 286235, 423130, 512210, 572470, 973199, 1946398, 4865995, 9731990]

約数ペア:

[(1, 9731990), (2, 4865995), (5, 1946398), (10, 973199), (17, 572470), (19, 512210), (23, 423130), (34, 286235), (38, 256105), (46, 211565), (85, 114494), (95, 102442), (115, 84626), (131, 74290), (170, 57247), (190, 51221), (230, 42313), (262, 37145), (323, 30130), (391, 24890), (437, 22270), (646, 15065), (655, 14858), (782, 12445), (874, 11135), (1310, 7429), (1615, 6026), (1955, 4978), (2185, 4454), (2227, 4370), (2489, 3910), (3013, 3230)]