261198340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1$

素因数の和:509

約数の個数: 96

約数和(自身を含む): 615960576

約数和(自身を除く): 354762236

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 61, 65, 86, 122, 130, 172, 215, 244, 260, 305, 383, 430, 559, 610, 766, 793, 860, 1118, 1220, 1532, 1586, 1915, 2236, 2623, 2795, 3172, 3830, 3965, 4979, 5246, 5590, 7660, 7930, 9958, 10492, 11180, 13115, 15860, 16469, 19916, 23363, 24895, 26230, 32938, 34099, 46726, 49790, 52460, 65876, 68198, 82345, 93452, 99580, 116815, 136396, 164690, 170495, 214097, 233630, 303719, 329380, 340990, 428194, 467260, 607438, 681980, 856388, 1004609, 1070485, 1214876, 1518595, 2009218, 2140970, 3037190, 4018436, 4281940, 5023045, 6074380, 10046090, 13059917, 20092180, 26119834, 52239668, 65299585, 130599170, 261198340]

約数ペア:

[(1, 261198340), (2, 130599170), (4, 65299585), (5, 52239668), (10, 26119834), (13, 20092180), (20, 13059917), (26, 10046090), (43, 6074380), (52, 5023045), (61, 4281940), (65, 4018436), (86, 3037190), (122, 2140970), (130, 2009218), (172, 1518595), (215, 1214876), (244, 1070485), (260, 1004609), (305, 856388), (383, 681980), (430, 607438), (559, 467260), (610, 428194), (766, 340990), (793, 329380), (860, 303719), (1118, 233630), (1220, 214097), (1532, 170495), (1586, 164690), (1915, 136396), (2236, 116815), (2623, 99580), (2795, 93452), (3172, 82345), (3830, 68198), (3965, 65876), (4979, 52460), (5246, 49790), (5590, 46726), (7660, 34099), (7930, 32938), (9958, 26230), (10492, 24895), (11180, 23363), (13115, 19916), (15860, 16469)]