18612400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:147

約数の個数: 120

約数和(自身を含む): 49203200

約数和(自身を除く): 30590800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 31, 38, 40, 50, 62, 76, 79, 80, 95, 100, 124, 152, 155, 158, 190, 200, 248, 304, 310, 316, 380, 395, 400, 475, 496, 589, 620, 632, 760, 775, 790, 950, 1178, 1240, 1264, 1501, 1520, 1550, 1580, 1900, 1975, 2356, 2449, 2480, 2945, 3002, 3100, 3160, 3800, 3950, 4712, 4898, 5890, 6004, 6200, 6320, 7505, 7600, 7900, 9424, 9796, 11780, 12008, 12245, 12400, 14725, 15010, 15800, 19592, 23560, 24016, 24490, 29450, 30020, 31600, 37525, 39184, 46531, 47120, 48980, 58900, 60040, 61225, 75050, 93062, 97960, 117800, 120080, 122450, 150100, 186124, 195920, 232655, 235600, 244900, 300200, 372248, 465310, 489800, 600400, 744496, 930620, 979600, 1163275, 1861240, 2326550, 3722480, 4653100, 9306200, 18612400]

約数ペア:

[(1, 18612400), (2, 9306200), (4, 4653100), (5, 3722480), (8, 2326550), (10, 1861240), (16, 1163275), (19, 979600), (20, 930620), (25, 744496), (31, 600400), (38, 489800), (40, 465310), (50, 372248), (62, 300200), (76, 244900), (79, 235600), (80, 232655), (95, 195920), (100, 186124), (124, 150100), (152, 122450), (155, 120080), (158, 117800), (190, 97960), (200, 93062), (248, 75050), (304, 61225), (310, 60040), (316, 58900), (380, 48980), (395, 47120), (400, 46531), (475, 39184), (496, 37525), (589, 31600), (620, 30020), (632, 29450), (760, 24490), (775, 24016), (790, 23560), (950, 19592), (1178, 15800), (1240, 15010), (1264, 14725), (1501, 12400), (1520, 12245), (1550, 12008), (1580, 11780), (1900, 9796), (1975, 9424), (2356, 7900), (2449, 7600), (2480, 7505), (2945, 6320), (3002, 6200), (3100, 6004), (3160, 5890), (3800, 4898), (3950, 4712)]