21931453840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{16126069}}^1$

素因数の和:16126099

約数の個数: 40

約数和(自身を含む): 53990082360

約数和(自身を除く): 32058628520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 16126069, 32252138, 64504276, 80630345, 129008552, 161260690, 258017104, 274143173, 322521380, 548286346, 645042760, 1096572692, 1290085520, 1370715865, 2193145384, 2741431730, 4386290768, 5482863460, 10965726920, 21931453840]

約数ペア:

[(1, 21931453840), (2, 10965726920), (4, 5482863460), (5, 4386290768), (8, 2741431730), (10, 2193145384), (16, 1370715865), (17, 1290085520), (20, 1096572692), (34, 645042760), (40, 548286346), (68, 322521380), (80, 274143173), (85, 258017104), (136, 161260690), (170, 129008552), (272, 80630345), (340, 64504276), (680, 32252138), (1360, 16126069)]