20472059000

素因数分解:

$2^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{4751}}^1$

素因数の和:4942

約数の個数: 128

約数和(自身を含む): 49816166400

約数和(自身を除く): 29344107400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 125, 139, 155, 200, 248, 250, 278, 310, 500, 556, 620, 695, 775, 1000, 1112, 1240, 1390, 1550, 2780, 3100, 3475, 3875, 4309, 4751, 5560, 6200, 6950, 7750, 8618, 9502, 13900, 15500, 17236, 17375, 19004, 21545, 23755, 27800, 31000, 34472, 34750, 38008, 43090, 47510, 69500, 86180, 95020, 107725, 118775, 139000, 147281, 172360, 190040, 215450, 237550, 294562, 430900, 475100, 538625, 589124, 593875, 660389, 736405, 861800, 950200, 1077250, 1178248, 1187750, 1320778, 1472810, 2154500, 2375500, 2641556, 2945620, 3301945, 3682025, 4309000, 4751000, 5283112, 5891240, 6603890, 7364050, 13207780, 14728100, 16509725, 18410125, 20472059, 26415560, 29456200, 33019450, 36820250, 40944118, 66038900, 73640500, 81888236, 82548625, 102360295, 132077800, 147281000, 163776472, 165097250, 204720590, 330194500, 409441180, 511801475, 660389000, 818882360, 1023602950, 2047205900, 2559007375, 4094411800, 5118014750, 10236029500, 20472059000]

約数ペア:

[(1, 20472059000), (2, 10236029500), (4, 5118014750), (5, 4094411800), (8, 2559007375), (10, 2047205900), (20, 1023602950), (25, 818882360), (31, 660389000), (40, 511801475), (50, 409441180), (62, 330194500), (100, 204720590), (124, 165097250), (125, 163776472), (139, 147281000), (155, 132077800), (200, 102360295), (248, 82548625), (250, 81888236), (278, 73640500), (310, 66038900), (500, 40944118), (556, 36820250), (620, 33019450), (695, 29456200), (775, 26415560), (1000, 20472059), (1112, 18410125), (1240, 16509725), (1390, 14728100), (1550, 13207780), (2780, 7364050), (3100, 6603890), (3475, 5891240), (3875, 5283112), (4309, 4751000), (4751, 4309000), (5560, 3682025), (6200, 3301945), (6950, 2945620), (7750, 2641556), (8618, 2375500), (9502, 2154500), (13900, 1472810), (15500, 1320778), (17236, 1187750), (17375, 1178248), (19004, 1077250), (21545, 950200), (23755, 861800), (27800, 736405), (31000, 660389), (34472, 593875), (34750, 589124), (38008, 538625), (43090, 475100), (47510, 430900), (69500, 294562), (86180, 237550), (95020, 215450), (107725, 190040), (118775, 172360), (139000, 147281)]