2190134380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{28289}}^1$

素因数の和:28391

約数の個数: 72

約数和(自身を含む): 5418100800

約数和(自身を除く): 3227966420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 79, 98, 140, 158, 196, 245, 316, 395, 490, 553, 790, 980, 1106, 1580, 2212, 2765, 3871, 5530, 7742, 11060, 15484, 19355, 28289, 38710, 56578, 77420, 113156, 141445, 198023, 282890, 396046, 565780, 792092, 990115, 1386161, 1980230, 2234831, 2772322, 3960460, 4469662, 5544644, 6930805, 8939324, 11174155, 13861610, 15643817, 22348310, 27723220, 31287634, 44696620, 62575268, 78219085, 109506719, 156438170, 219013438, 312876340, 438026876, 547533595, 1095067190, 2190134380]

約数ペア:

[(1, 2190134380), (2, 1095067190), (4, 547533595), (5, 438026876), (7, 312876340), (10, 219013438), (14, 156438170), (20, 109506719), (28, 78219085), (35, 62575268), (49, 44696620), (70, 31287634), (79, 27723220), (98, 22348310), (140, 15643817), (158, 13861610), (196, 11174155), (245, 8939324), (316, 6930805), (395, 5544644), (490, 4469662), (553, 3960460), (790, 2772322), (980, 2234831), (1106, 1980230), (1580, 1386161), (2212, 990115), (2765, 792092), (3871, 565780), (5530, 396046), (7742, 282890), (11060, 198023), (15484, 141445), (19355, 113156), (28289, 77420), (38710, 56578)]