245351820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{4909}}^1$

素因数の和:4952

約数の個数: 144

約数和(自身を含む): 846326880

約数和(自身を除く): 600975060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 49, 51, 60, 68, 70, 84, 85, 98, 102, 105, 119, 140, 147, 170, 196, 204, 210, 238, 245, 255, 294, 340, 357, 420, 476, 490, 510, 588, 595, 714, 735, 833, 980, 1020, 1190, 1428, 1470, 1666, 1785, 2380, 2499, 2940, 3332, 3570, 4165, 4909, 4998, 7140, 8330, 9818, 9996, 12495, 14727, 16660, 19636, 24545, 24990, 29454, 34363, 49090, 49980, 58908, 68726, 73635, 83453, 98180, 103089, 137452, 147270, 166906, 171815, 206178, 240541, 250359, 294540, 333812, 343630, 412356, 417265, 481082, 500718, 515445, 584171, 687260, 721623, 834530, 962164, 1001436, 1030890, 1168342, 1202705, 1251795, 1443246, 1669060, 1752513, 2061780, 2336684, 2405410, 2503590, 2886492, 2920855, 3505026, 3608115, 4089197, 4810820, 5007180, 5841710, 7010052, 7216230, 8178394, 8762565, 11683420, 12267591, 14432460, 16356788, 17525130, 20445985, 24535182, 35050260, 40891970, 49070364, 61337955, 81783940, 122675910, 245351820]

約数ペア:

[(1, 245351820), (2, 122675910), (3, 81783940), (4, 61337955), (5, 49070364), (6, 40891970), (7, 35050260), (10, 24535182), (12, 20445985), (14, 17525130), (15, 16356788), (17, 14432460), (20, 12267591), (21, 11683420), (28, 8762565), (30, 8178394), (34, 7216230), (35, 7010052), (42, 5841710), (49, 5007180), (51, 4810820), (60, 4089197), (68, 3608115), (70, 3505026), (84, 2920855), (85, 2886492), (98, 2503590), (102, 2405410), (105, 2336684), (119, 2061780), (140, 1752513), (147, 1669060), (170, 1443246), (196, 1251795), (204, 1202705), (210, 1168342), (238, 1030890), (245, 1001436), (255, 962164), (294, 834530), (340, 721623), (357, 687260), (420, 584171), (476, 515445), (490, 500718), (510, 481082), (588, 417265), (595, 412356), (714, 343630), (735, 333812), (833, 294540), (980, 250359), (1020, 240541), (1190, 206178), (1428, 171815), (1470, 166906), (1666, 147270), (1785, 137452), (2380, 103089), (2499, 98180), (2940, 83453), (3332, 73635), (3570, 68726), (4165, 58908), (4909, 49980), (4998, 49090), (7140, 34363), (8330, 29454), (9818, 24990), (9996, 24545), (12495, 19636), (14727, 16660)]