20026000

素因数分解:

$2^4\times 5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 160

約数和(自身を含む): 55710720

約数和(自身を除く): 35684720

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 25, 31, 34, 38, 40, 50, 62, 68, 76, 80, 85, 95, 100, 124, 125, 136, 152, 155, 170, 190, 200, 248, 250, 272, 304, 310, 323, 340, 380, 400, 425, 475, 496, 500, 527, 589, 620, 646, 680, 760, 775, 850, 950, 1000, 1054, 1178, 1240, 1292, 1360, 1520, 1550, 1615, 1700, 1900, 2000, 2108, 2125, 2356, 2375, 2480, 2584, 2635, 2945, 3100, 3230, 3400, 3800, 3875, 4216, 4250, 4712, 4750, 5168, 5270, 5890, 6200, 6460, 6800, 7600, 7750, 8075, 8432, 8500, 9424, 9500, 10013, 10540, 11780, 12400, 12920, 13175, 14725, 15500, 16150, 17000, 19000, 20026, 21080, 23560, 25840, 26350, 29450, 31000, 32300, 34000, 38000, 40052, 40375, 42160, 47120, 50065, 52700, 58900, 62000, 64600, 65875, 73625, 80104, 80750, 100130, 105400, 117800, 129200, 131750, 147250, 160208, 161500, 200260, 210800, 235600, 250325, 263500, 294500, 323000, 400520, 500650, 527000, 589000, 646000, 801040, 1001300, 1054000, 1178000, 1251625, 2002600, 2503250, 4005200, 5006500, 10013000, 20026000]

約数ペア:

[(1, 20026000), (2, 10013000), (4, 5006500), (5, 4005200), (8, 2503250), (10, 2002600), (16, 1251625), (17, 1178000), (19, 1054000), (20, 1001300), (25, 801040), (31, 646000), (34, 589000), (38, 527000), (40, 500650), (50, 400520), (62, 323000), (68, 294500), (76, 263500), (80, 250325), (85, 235600), (95, 210800), (100, 200260), (124, 161500), (125, 160208), (136, 147250), (152, 131750), (155, 129200), (170, 117800), (190, 105400), (200, 100130), (248, 80750), (250, 80104), (272, 73625), (304, 65875), (310, 64600), (323, 62000), (340, 58900), (380, 52700), (400, 50065), (425, 47120), (475, 42160), (496, 40375), (500, 40052), (527, 38000), (589, 34000), (620, 32300), (646, 31000), (680, 29450), (760, 26350), (775, 25840), (850, 23560), (950, 21080), (1000, 20026), (1054, 19000), (1178, 17000), (1240, 16150), (1292, 15500), (1360, 14725), (1520, 13175), (1550, 12920), (1615, 12400), (1700, 11780), (1900, 10540), (2000, 10013), (2108, 9500), (2125, 9424), (2356, 8500), (2375, 8432), (2480, 8075), (2584, 7750), (2635, 7600), (2945, 6800), (3100, 6460), (3230, 6200), (3400, 5890), (3800, 5270), (3875, 5168), (4216, 4750), (4250, 4712)]