71898320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{269}}^1$

素因数の和:552

約数の個数: 80

約数和(自身を含む): 181394640

約数和(自身を除く): 109496320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 257, 260, 269, 514, 520, 538, 1028, 1040, 1076, 1285, 1345, 2056, 2152, 2570, 2690, 3341, 3497, 4112, 4304, 5140, 5380, 6682, 6994, 10280, 10760, 13364, 13988, 16705, 17485, 20560, 21520, 26728, 27976, 33410, 34970, 53456, 55952, 66820, 69133, 69940, 133640, 138266, 139880, 267280, 276532, 279760, 345665, 553064, 691330, 898729, 1106128, 1382660, 1797458, 2765320, 3594916, 4493645, 5530640, 7189832, 8987290, 14379664, 17974580, 35949160, 71898320]

約数ペア:

[(1, 71898320), (2, 35949160), (4, 17974580), (5, 14379664), (8, 8987290), (10, 7189832), (13, 5530640), (16, 4493645), (20, 3594916), (26, 2765320), (40, 1797458), (52, 1382660), (65, 1106128), (80, 898729), (104, 691330), (130, 553064), (208, 345665), (257, 279760), (260, 276532), (269, 267280), (514, 139880), (520, 138266), (538, 133640), (1028, 69940), (1040, 69133), (1076, 66820), (1285, 55952), (1345, 53456), (2056, 34970), (2152, 33410), (2570, 27976), (2690, 26728), (3341, 21520), (3497, 20560), (4112, 17485), (4304, 16705), (5140, 13988), (5380, 13364), (6682, 10760), (6994, 10280)]