28877420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1$

素因数の和:495

約数の個数: 96

約数和(自身を含む): 74511360

約数和(自身を除く): 45633940

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 23, 26, 44, 46, 52, 55, 65, 92, 110, 115, 130, 143, 220, 230, 253, 260, 286, 299, 439, 460, 506, 572, 598, 715, 878, 1012, 1196, 1265, 1430, 1495, 1756, 2195, 2530, 2860, 2990, 3289, 4390, 4829, 5060, 5707, 5980, 6578, 8780, 9658, 10097, 11414, 13156, 16445, 19316, 20194, 22828, 24145, 28535, 32890, 40388, 48290, 50485, 57070, 62777, 65780, 96580, 100970, 111067, 114140, 125554, 131261, 201940, 222134, 251108, 262522, 313885, 444268, 525044, 555335, 627770, 656305, 1110670, 1255540, 1312610, 1443871, 2221340, 2625220, 2887742, 5775484, 7219355, 14438710, 28877420]

約数ペア:

[(1, 28877420), (2, 14438710), (4, 7219355), (5, 5775484), (10, 2887742), (11, 2625220), (13, 2221340), (20, 1443871), (22, 1312610), (23, 1255540), (26, 1110670), (44, 656305), (46, 627770), (52, 555335), (55, 525044), (65, 444268), (92, 313885), (110, 262522), (115, 251108), (130, 222134), (143, 201940), (220, 131261), (230, 125554), (253, 114140), (260, 111067), (286, 100970), (299, 96580), (439, 65780), (460, 62777), (506, 57070), (572, 50485), (598, 48290), (715, 40388), (878, 32890), (1012, 28535), (1196, 24145), (1265, 22828), (1430, 20194), (1495, 19316), (1756, 16445), (2195, 13156), (2530, 11414), (2860, 10097), (2990, 9658), (3289, 8780), (4390, 6578), (4829, 5980), (5060, 5707)]