18843935900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{319931}}^1$

素因数の和:319995

約数の個数: 72

約数和(自身を含む): 44432156160

約数和(自身を除く): 25588220260

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 76, 95, 100, 124, 155, 190, 310, 380, 475, 589, 620, 775, 950, 1178, 1550, 1900, 2356, 2945, 3100, 5890, 11780, 14725, 29450, 58900, 319931, 639862, 1279724, 1599655, 3199310, 6078689, 6398620, 7998275, 9917861, 12157378, 15996550, 19835722, 24314756, 30393445, 31993100, 39671444, 49589305, 60786890, 99178610, 121573780, 151967225, 188439359, 198357220, 247946525, 303934450, 376878718, 495893050, 607868900, 753757436, 942196795, 991786100, 1884393590, 3768787180, 4710983975, 9421967950, 18843935900]

約数ペア:

[(1, 18843935900), (2, 9421967950), (4, 4710983975), (5, 3768787180), (10, 1884393590), (19, 991786100), (20, 942196795), (25, 753757436), (31, 607868900), (38, 495893050), (50, 376878718), (62, 303934450), (76, 247946525), (95, 198357220), (100, 188439359), (124, 151967225), (155, 121573780), (190, 99178610), (310, 60786890), (380, 49589305), (475, 39671444), (589, 31993100), (620, 30393445), (775, 24314756), (950, 19835722), (1178, 15996550), (1550, 12157378), (1900, 9917861), (2356, 7998275), (2945, 6398620), (3100, 6078689), (5890, 3199310), (11780, 1599655), (14725, 1279724), (29450, 639862), (58900, 319931)]