261299220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47857}}^1$

素因数の和:47889

約数の個数: 96

約数和(自身を含む): 900496128

約数和(自身を除く): 639196908

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 47857, 95714, 143571, 191428, 239285, 287142, 334999, 478570, 574284, 622141, 669998, 717855, 957140, 1004997, 1244282, 1339996, 1435710, 1674995, 1866423, 2009994, 2488564, 2871420, 3110705, 3349990, 3732846, 4019988, 4354987, 5024985, 6221410, 6699980, 7465692, 8709974, 9332115, 10049970, 12442820, 13064961, 17419948, 18664230, 20099940, 21774935, 26129922, 37328460, 43549870, 52259844, 65324805, 87099740, 130649610, 261299220]

約数ペア:

[(1, 261299220), (2, 130649610), (3, 87099740), (4, 65324805), (5, 52259844), (6, 43549870), (7, 37328460), (10, 26129922), (12, 21774935), (13, 20099940), (14, 18664230), (15, 17419948), (20, 13064961), (21, 12442820), (26, 10049970), (28, 9332115), (30, 8709974), (35, 7465692), (39, 6699980), (42, 6221410), (52, 5024985), (60, 4354987), (65, 4019988), (70, 3732846), (78, 3349990), (84, 3110705), (91, 2871420), (105, 2488564), (130, 2009994), (140, 1866423), (156, 1674995), (182, 1435710), (195, 1339996), (210, 1244282), (260, 1004997), (273, 957140), (364, 717855), (390, 669998), (420, 622141), (455, 574284), (546, 478570), (780, 334999), (910, 287142), (1092, 239285), (1365, 191428), (1820, 143571), (2730, 95714), (5460, 47857)]