245919280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:387

約数の個数: 160

約数和(自身を含む): 659957760

約数和(自身を除く): 414038480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 31, 34, 38, 40, 62, 68, 76, 80, 85, 95, 124, 136, 152, 155, 170, 190, 248, 272, 304, 307, 310, 323, 340, 380, 496, 527, 589, 614, 620, 646, 680, 760, 1054, 1178, 1228, 1240, 1292, 1360, 1520, 1535, 1615, 2108, 2356, 2456, 2480, 2584, 2635, 2945, 3070, 3230, 4216, 4712, 4912, 5168, 5219, 5270, 5833, 5890, 6140, 6460, 8432, 9424, 9517, 10013, 10438, 10540, 11666, 11780, 12280, 12920, 19034, 20026, 20876, 21080, 23332, 23560, 24560, 25840, 26095, 29165, 38068, 40052, 41752, 42160, 46664, 47120, 47585, 50065, 52190, 58330, 76136, 80104, 83504, 93328, 95170, 99161, 100130, 104380, 116660, 152272, 160208, 161789, 180823, 190340, 198322, 200260, 208760, 233320, 323578, 361646, 380680, 396644, 400520, 417520, 466640, 495805, 647156, 723292, 761360, 793288, 801040, 808945, 904115, 991610, 1294312, 1446584, 1586576, 1617890, 1808230, 1983220, 2588624, 2893168, 3073991, 3235780, 3616460, 3966440, 6147982, 6471560, 7232920, 7932880, 12295964, 12943120, 14465840, 15369955, 24591928, 30739910, 49183856, 61479820, 122959640, 245919280]

約数ペア:

[(1, 245919280), (2, 122959640), (4, 61479820), (5, 49183856), (8, 30739910), (10, 24591928), (16, 15369955), (17, 14465840), (19, 12943120), (20, 12295964), (31, 7932880), (34, 7232920), (38, 6471560), (40, 6147982), (62, 3966440), (68, 3616460), (76, 3235780), (80, 3073991), (85, 2893168), (95, 2588624), (124, 1983220), (136, 1808230), (152, 1617890), (155, 1586576), (170, 1446584), (190, 1294312), (248, 991610), (272, 904115), (304, 808945), (307, 801040), (310, 793288), (323, 761360), (340, 723292), (380, 647156), (496, 495805), (527, 466640), (589, 417520), (614, 400520), (620, 396644), (646, 380680), (680, 361646), (760, 323578), (1054, 233320), (1178, 208760), (1228, 200260), (1240, 198322), (1292, 190340), (1360, 180823), (1520, 161789), (1535, 160208), (1615, 152272), (2108, 116660), (2356, 104380), (2456, 100130), (2480, 99161), (2584, 95170), (2635, 93328), (2945, 83504), (3070, 80104), (3230, 76136), (4216, 58330), (4712, 52190), (4912, 50065), (5168, 47585), (5219, 47120), (5270, 46664), (5833, 42160), (5890, 41752), (6140, 40052), (6460, 38068), (8432, 29165), (9424, 26095), (9517, 25840), (10013, 24560), (10438, 23560), (10540, 23332), (11666, 21080), (11780, 20876), (12280, 20026), (12920, 19034)]