291259640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1423}}^1$

素因数の和:1501

約数の個数: 128

約数和(自身を含む): 812021760

約数和(自身を除く): 520762120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 43, 56, 68, 70, 85, 86, 119, 136, 140, 170, 172, 215, 238, 280, 301, 340, 344, 430, 476, 595, 602, 680, 731, 860, 952, 1190, 1204, 1423, 1462, 1505, 1720, 2380, 2408, 2846, 2924, 3010, 3655, 4760, 5117, 5692, 5848, 6020, 7115, 7310, 9961, 10234, 11384, 12040, 14230, 14620, 19922, 20468, 24191, 25585, 28460, 29240, 39844, 40936, 48382, 49805, 51170, 56920, 61189, 79688, 96764, 99610, 102340, 120955, 122378, 169337, 193528, 199220, 204680, 241910, 244756, 305945, 338674, 398440, 428323, 483820, 489512, 611890, 677348, 846685, 856646, 967640, 1040213, 1223780, 1354696, 1693370, 1713292, 2080426, 2141615, 2447560, 3386740, 3426584, 4160852, 4283230, 5201065, 6773480, 7281491, 8321704, 8566460, 10402130, 14562982, 17132920, 20804260, 29125964, 36407455, 41608520, 58251928, 72814910, 145629820, 291259640]

約数ペア:

[(1, 291259640), (2, 145629820), (4, 72814910), (5, 58251928), (7, 41608520), (8, 36407455), (10, 29125964), (14, 20804260), (17, 17132920), (20, 14562982), (28, 10402130), (34, 8566460), (35, 8321704), (40, 7281491), (43, 6773480), (56, 5201065), (68, 4283230), (70, 4160852), (85, 3426584), (86, 3386740), (119, 2447560), (136, 2141615), (140, 2080426), (170, 1713292), (172, 1693370), (215, 1354696), (238, 1223780), (280, 1040213), (301, 967640), (340, 856646), (344, 846685), (430, 677348), (476, 611890), (595, 489512), (602, 483820), (680, 428323), (731, 398440), (860, 338674), (952, 305945), (1190, 244756), (1204, 241910), (1423, 204680), (1462, 199220), (1505, 193528), (1720, 169337), (2380, 122378), (2408, 120955), (2846, 102340), (2924, 99610), (3010, 96764), (3655, 79688), (4760, 61189), (5117, 56920), (5692, 51170), (5848, 49805), (6020, 48382), (7115, 40936), (7310, 39844), (9961, 29240), (10234, 28460), (11384, 25585), (12040, 24191), (14230, 20468), (14620, 19922)]