28029940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4339}}^1$

素因数の和:4384

約数の個数: 48

約数和(自身を含む): 65620800

約数和(自身を除く): 37590860

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 4339, 6460, 8678, 17356, 21695, 43390, 73763, 82441, 86780, 147526, 164882, 295052, 329764, 368815, 412205, 737630, 824410, 1401497, 1475260, 1648820, 2802994, 5605988, 7007485, 14014970, 28029940]

約数ペア:

[(1, 28029940), (2, 14014970), (4, 7007485), (5, 5605988), (10, 2802994), (17, 1648820), (19, 1475260), (20, 1401497), (34, 824410), (38, 737630), (68, 412205), (76, 368815), (85, 329764), (95, 295052), (170, 164882), (190, 147526), (323, 86780), (340, 82441), (380, 73763), (646, 43390), (1292, 21695), (1615, 17356), (3230, 8678), (4339, 6460)]