1900500080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{7487}}^1$

素因数の和:7686

約数の個数: 80

約数和(自身を含む): 4679700480

約数和(自身を除く): 2779200400

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 167, 190, 304, 334, 380, 668, 760, 835, 1336, 1520, 1670, 2672, 3173, 3340, 6346, 6680, 7487, 12692, 13360, 14974, 15865, 25384, 29948, 31730, 37435, 50768, 59896, 63460, 74870, 119792, 126920, 142253, 149740, 253840, 284506, 299480, 569012, 598960, 711265, 1138024, 1250329, 1422530, 2276048, 2500658, 2845060, 5001316, 5690120, 6251645, 10002632, 11380240, 12503290, 20005264, 23756251, 25006580, 47512502, 50013160, 95025004, 100026320, 118781255, 190050008, 237562510, 380100016, 475125020, 950250040, 1900500080]

約数ペア:

[(1, 1900500080), (2, 950250040), (4, 475125020), (5, 380100016), (8, 237562510), (10, 190050008), (16, 118781255), (19, 100026320), (20, 95025004), (38, 50013160), (40, 47512502), (76, 25006580), (80, 23756251), (95, 20005264), (152, 12503290), (167, 11380240), (190, 10002632), (304, 6251645), (334, 5690120), (380, 5001316), (668, 2845060), (760, 2500658), (835, 2276048), (1336, 1422530), (1520, 1250329), (1670, 1138024), (2672, 711265), (3173, 598960), (3340, 569012), (6346, 299480), (6680, 284506), (7487, 253840), (12692, 149740), (13360, 142253), (14974, 126920), (15865, 119792), (25384, 74870), (29948, 63460), (31730, 59896), (37435, 50768)]