212901200

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:405

約数の個数: 120

約数和(自身を含む): 548000640

約数和(自身を除く): 335099440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 131, 136, 170, 200, 239, 262, 272, 340, 400, 425, 478, 524, 655, 680, 850, 956, 1048, 1195, 1310, 1360, 1700, 1912, 2096, 2227, 2390, 2620, 3275, 3400, 3824, 4063, 4454, 4780, 5240, 5975, 6550, 6800, 8126, 8908, 9560, 10480, 11135, 11950, 13100, 16252, 17816, 19120, 20315, 22270, 23900, 26200, 31309, 32504, 35632, 40630, 44540, 47800, 52400, 55675, 62618, 65008, 81260, 89080, 95600, 101575, 111350, 125236, 156545, 162520, 178160, 203150, 222700, 250472, 313090, 325040, 406300, 445400, 500944, 532253, 626180, 782725, 812600, 890800, 1064506, 1252360, 1565450, 1625200, 2129012, 2504720, 2661265, 3130900, 4258024, 5322530, 6261800, 8516048, 10645060, 12523600, 13306325, 21290120, 26612650, 42580240, 53225300, 106450600, 212901200]

約数ペア:

[(1, 212901200), (2, 106450600), (4, 53225300), (5, 42580240), (8, 26612650), (10, 21290120), (16, 13306325), (17, 12523600), (20, 10645060), (25, 8516048), (34, 6261800), (40, 5322530), (50, 4258024), (68, 3130900), (80, 2661265), (85, 2504720), (100, 2129012), (131, 1625200), (136, 1565450), (170, 1252360), (200, 1064506), (239, 890800), (262, 812600), (272, 782725), (340, 626180), (400, 532253), (425, 500944), (478, 445400), (524, 406300), (655, 325040), (680, 313090), (850, 250472), (956, 222700), (1048, 203150), (1195, 178160), (1310, 162520), (1360, 156545), (1700, 125236), (1912, 111350), (2096, 101575), (2227, 95600), (2390, 89080), (2620, 81260), (3275, 65008), (3400, 62618), (3824, 55675), (4063, 52400), (4454, 47800), (4780, 44540), (5240, 40630), (5975, 35632), (6550, 32504), (6800, 31309), (8126, 26200), (8908, 23900), (9560, 22270), (10480, 20315), (11135, 19120), (11950, 17816), (13100, 16252)]