121315220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{1021}}^1$

素因数の和:1500

約数の個数: 48

約数和(自身を含む): 275228688

約数和(自身を除く): 153913468

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 457, 914, 1021, 1828, 2042, 2285, 4084, 4570, 5105, 5941, 9140, 10210, 11882, 13273, 20420, 23764, 26546, 29705, 53092, 59410, 66365, 118820, 132730, 265460, 466597, 933194, 1866388, 2332985, 4665970, 6065761, 9331940, 12131522, 24263044, 30328805, 60657610, 121315220]

約数ペア:

[(1, 121315220), (2, 60657610), (4, 30328805), (5, 24263044), (10, 12131522), (13, 9331940), (20, 6065761), (26, 4665970), (52, 2332985), (65, 1866388), (130, 933194), (260, 466597), (457, 265460), (914, 132730), (1021, 118820), (1828, 66365), (2042, 59410), (2285, 53092), (4084, 29705), (4570, 26546), (5105, 23764), (5941, 20420), (9140, 13273), (10210, 11882)]