About the Number

121728972

121728971 ← → 121728973

2進数表記:111010000010110111111001100

漢数字表記:一億二千百七十二万八千九百七十二

素因数分解:

2 2 × 3 1 × 19 1 × 23 1 × 139 1 × 167 1

素因数の和:355
約数の個数: 96
約数和(自身を含む): 316108800
約数和(自身を除く): 194379828

約数列:
[1, 2, 3, 4, 6, 12, 19, 23, 38, 46, 57, 69, 76, 92, 114, 138, 139, 167, 228, 276, 278, 334, 417, 437, 501, 556, 668, 834, 874, 1002, 1311, 1668, 1748, 2004, 2622, 2641, 3173, 3197, 3841, 5244, 5282, 6346, 6394, 7682, 7923, 9519, 9591, 10564, 11523, 12692, 12788, 15364, 15846, 19038, 19182, 23046, 23213, 31692, 38076, 38364, 46092, 46426, 60743, 69639, 72979, 92852, 121486, 139278, 145958, 182229, 218937, 242972, 278556, 291916, 364458, 437874, 441047, 533899, 728916, 875748, 882094, 1067798, 1323141, 1601697, 1764188, 2135596, 2646282, 3203394, 5292564, 6406788, 10144081, 20288162, 30432243, 40576324, 60864486, 121728972]

約数ペア:
[(1, 121728972), (2, 60864486), (3, 40576324), (4, 30432243), (6, 20288162), (12, 10144081), (19, 6406788), (23, 5292564), (38, 3203394), (46, 2646282), (57, 2135596), (69, 1764188), (76, 1601697), (92, 1323141), (114, 1067798), (138, 882094), (139, 875748), (167, 728916), (228, 533899), (276, 441047), (278, 437874), (334, 364458), (417, 291916), (437, 278556), (501, 242972), (556, 218937), (668, 182229), (834, 145958), (874, 139278), (1002, 121486), (1311, 92852), (1668, 72979), (1748, 69639), (2004, 60743), (2622, 46426), (2641, 46092), (3173, 38364), (3197, 38076), (3841, 31692), (5244, 23213), (5282, 23046), (6346, 19182), (6394, 19038), (7682, 15846), (7923, 15364), (9519, 12788), (9591, 12692), (10564, 11523)]

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