19549666400

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71663}}^1$

素因数の和:71725

約数の個数: 144

約数和(自身を含む): 53744560128

約数和(自身を除く): 34194893728

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 32, 40, 44, 50, 55, 62, 80, 88, 100, 110, 124, 155, 160, 176, 200, 220, 248, 275, 310, 341, 352, 400, 440, 496, 550, 620, 682, 775, 800, 880, 992, 1100, 1240, 1364, 1550, 1705, 1760, 2200, 2480, 2728, 3100, 3410, 4400, 4960, 5456, 6200, 6820, 8525, 8800, 10912, 12400, 13640, 17050, 24800, 27280, 34100, 54560, 68200, 71663, 136400, 143326, 272800, 286652, 358315, 573304, 716630, 788293, 1146608, 1433260, 1576586, 1791575, 2221553, 2293216, 2866520, 3153172, 3583150, 3941465, 4443106, 5733040, 6306344, 7166300, 7882930, 8886212, 11107765, 11466080, 12612688, 14332600, 15765860, 17772424, 19707325, 22215530, 24437083, 25225376, 28665200, 31531720, 35544848, 39414650, 44431060, 48874166, 55538825, 57330400, 63063440, 71089696, 78829300, 88862120, 97748332, 111077650, 122185415, 126126880, 157658600, 177724240, 195496664, 222155300, 244370830, 315317200, 355448480, 390993328, 444310600, 488741660, 610927075, 630634400, 781986656, 888621200, 977483320, 1221854150, 1777242400, 1954966640, 2443708300, 3909933280, 4887416600, 9774833200, 19549666400]

約数ペア:

[(1, 19549666400), (2, 9774833200), (4, 4887416600), (5, 3909933280), (8, 2443708300), (10, 1954966640), (11, 1777242400), (16, 1221854150), (20, 977483320), (22, 888621200), (25, 781986656), (31, 630634400), (32, 610927075), (40, 488741660), (44, 444310600), (50, 390993328), (55, 355448480), (62, 315317200), (80, 244370830), (88, 222155300), (100, 195496664), (110, 177724240), (124, 157658600), (155, 126126880), (160, 122185415), (176, 111077650), (200, 97748332), (220, 88862120), (248, 78829300), (275, 71089696), (310, 63063440), (341, 57330400), (352, 55538825), (400, 48874166), (440, 44431060), (496, 39414650), (550, 35544848), (620, 31531720), (682, 28665200), (775, 25225376), (800, 24437083), (880, 22215530), (992, 19707325), (1100, 17772424), (1240, 15765860), (1364, 14332600), (1550, 12612688), (1705, 11466080), (1760, 11107765), (2200, 8886212), (2480, 7882930), (2728, 7166300), (3100, 6306344), (3410, 5733040), (4400, 4443106), (4960, 3941465), (5456, 3583150), (6200, 3153172), (6820, 2866520), (8525, 2293216), (8800, 2221553), (10912, 1791575), (12400, 1576586), (13640, 1433260), (17050, 1146608), (24800, 788293), (27280, 716630), (34100, 573304), (54560, 358315), (68200, 286652), (71663, 272800), (136400, 143326)]