19913850

素因数分解:

$2^1\times 3^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1$

素因数の和:187

約数の個数: 144

約数和(自身を含む): 60933600

約数和(自身を除く): 41019750

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 27, 30, 33, 45, 50, 54, 55, 66, 75, 81, 90, 99, 110, 135, 149, 150, 162, 165, 198, 225, 243, 270, 275, 297, 298, 330, 405, 447, 450, 486, 495, 550, 594, 675, 745, 810, 825, 891, 894, 990, 1215, 1341, 1350, 1485, 1490, 1639, 1650, 1782, 2025, 2235, 2430, 2475, 2673, 2682, 2970, 3278, 3725, 4023, 4050, 4455, 4470, 4917, 4950, 5346, 6075, 6705, 7425, 7450, 8046, 8195, 8910, 9834, 11175, 12069, 12150, 13365, 13410, 14751, 14850, 16390, 20115, 22275, 22350, 24138, 24585, 26730, 29502, 33525, 36207, 40230, 40975, 44253, 44550, 49170, 60345, 66825, 67050, 72414, 73755, 81950, 88506, 100575, 120690, 122925, 132759, 133650, 147510, 181035, 201150, 221265, 245850, 265518, 301725, 362070, 368775, 398277, 442530, 603450, 663795, 737550, 796554, 905175, 1106325, 1327590, 1810350, 1991385, 2212650, 3318975, 3982770, 6637950, 9956925, 19913850]

約数ペア:

[(1, 19913850), (2, 9956925), (3, 6637950), (5, 3982770), (6, 3318975), (9, 2212650), (10, 1991385), (11, 1810350), (15, 1327590), (18, 1106325), (22, 905175), (25, 796554), (27, 737550), (30, 663795), (33, 603450), (45, 442530), (50, 398277), (54, 368775), (55, 362070), (66, 301725), (75, 265518), (81, 245850), (90, 221265), (99, 201150), (110, 181035), (135, 147510), (149, 133650), (150, 132759), (162, 122925), (165, 120690), (198, 100575), (225, 88506), (243, 81950), (270, 73755), (275, 72414), (297, 67050), (298, 66825), (330, 60345), (405, 49170), (447, 44550), (450, 44253), (486, 40975), (495, 40230), (550, 36207), (594, 33525), (675, 29502), (745, 26730), (810, 24585), (825, 24138), (891, 22350), (894, 22275), (990, 20115), (1215, 16390), (1341, 14850), (1350, 14751), (1485, 13410), (1490, 13365), (1639, 12150), (1650, 12069), (1782, 11175), (2025, 9834), (2235, 8910), (2430, 8195), (2475, 8046), (2673, 7450), (2682, 7425), (2970, 6705), (3278, 6075), (3725, 5346), (4023, 4950), (4050, 4917), (4455, 4470)]