1649710720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19381}}^1$

素因数の和:19426

約数の個数: 128

約数和(自身を含む): 4744713600

約数和(自身を除く): 3095002880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 128, 133, 140, 152, 160, 190, 224, 266, 280, 304, 320, 380, 448, 532, 560, 608, 640, 665, 760, 896, 1064, 1120, 1216, 1330, 1520, 2128, 2240, 2432, 2660, 3040, 4256, 4480, 5320, 6080, 8512, 10640, 12160, 17024, 19381, 21280, 38762, 42560, 77524, 85120, 96905, 135667, 155048, 193810, 271334, 310096, 368239, 387620, 542668, 620192, 678335, 736478, 775240, 1085336, 1240384, 1356670, 1472956, 1550480, 1841195, 2170672, 2480768, 2577673, 2713340, 2945912, 3100960, 3682390, 4341344, 5155346, 5426680, 5891824, 6201920, 7364780, 8682688, 10310692, 10853360, 11783648, 12403840, 12888365, 14729560, 17365376, 20621384, 21706720, 23567296, 25776730, 29459120, 41242768, 43413440, 47134592, 51553460, 58918240, 82485536, 86826880, 103106920, 117836480, 164971072, 206213840, 235672960, 329942144, 412427680, 824855360, 1649710720]

約数ペア:

[(1, 1649710720), (2, 824855360), (4, 412427680), (5, 329942144), (7, 235672960), (8, 206213840), (10, 164971072), (14, 117836480), (16, 103106920), (19, 86826880), (20, 82485536), (28, 58918240), (32, 51553460), (35, 47134592), (38, 43413440), (40, 41242768), (56, 29459120), (64, 25776730), (70, 23567296), (76, 21706720), (80, 20621384), (95, 17365376), (112, 14729560), (128, 12888365), (133, 12403840), (140, 11783648), (152, 10853360), (160, 10310692), (190, 8682688), (224, 7364780), (266, 6201920), (280, 5891824), (304, 5426680), (320, 5155346), (380, 4341344), (448, 3682390), (532, 3100960), (560, 2945912), (608, 2713340), (640, 2577673), (665, 2480768), (760, 2170672), (896, 1841195), (1064, 1550480), (1120, 1472956), (1216, 1356670), (1330, 1240384), (1520, 1085336), (2128, 775240), (2240, 736478), (2432, 678335), (2660, 620192), (3040, 542668), (4256, 387620), (4480, 368239), (5320, 310096), (6080, 271334), (8512, 193810), (10640, 155048), (12160, 135667), (17024, 96905), (19381, 85120), (21280, 77524), (38762, 42560)]