648546285

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{599}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 1140480000

約数和(自身を除く): 491933715

約数列:

[1, 3, 5, 15, 19, 29, 57, 87, 95, 131, 145, 285, 393, 435, 551, 599, 655, 1653, 1797, 1965, 2489, 2755, 2995, 3799, 7467, 8265, 8985, 11381, 11397, 12445, 17371, 18995, 34143, 37335, 52113, 56905, 56985, 72181, 78469, 86855, 170715, 216543, 235407, 260565, 330049, 360905, 392345, 990147, 1082715, 1177035, 1490911, 1650245, 2275601, 4472733, 4950735, 6826803, 7454555, 11378005, 22363665, 34134015, 43236419, 129709257, 216182095, 648546285]

約数ペア:

[(1, 648546285), (3, 216182095), (5, 129709257), (15, 43236419), (19, 34134015), (29, 22363665), (57, 11378005), (87, 7454555), (95, 6826803), (131, 4950735), (145, 4472733), (285, 2275601), (393, 1650245), (435, 1490911), (551, 1177035), (599, 1082715), (655, 990147), (1653, 392345), (1797, 360905), (1965, 330049), (2489, 260565), (2755, 235407), (2995, 216543), (3799, 170715), (7467, 86855), (8265, 78469), (8985, 72181), (11381, 56985), (11397, 56905), (12445, 52113), (17371, 37335), (18995, 34143)]